20218325743

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:329

約数の個数: 128

約数和(自身を含む): 28849582080

約数和(自身を除く): 8631256337

約数列:

[1, 7, 11, 17, 23, 61, 77, 101, 109, 119, 161, 187, 253, 391, 427, 671, 707, 763, 1037, 1111, 1199, 1309, 1403, 1717, 1771, 1853, 2323, 2507, 2737, 4301, 4697, 6161, 6649, 7259, 7777, 8393, 9821, 11009, 11407, 12019, 12971, 15433, 16261, 17549, 18887, 20383, 23851, 25553, 27577, 30107, 39491, 42619, 43127, 46543, 67771, 73139, 77063, 79849, 104737, 108031, 113033, 121099, 132209, 141703, 142681, 152927, 166957, 178871, 187153, 193039, 253207, 262361, 276437, 298333, 434401, 468809, 474397, 511973, 671549, 733159, 791231, 847693, 991921, 1070489, 1152107, 1243363, 1310071, 1558733, 1682197, 1772449, 1836527, 2058683, 2408951, 2599759, 2785277, 3040807, 3281663, 4304519, 4700843, 7387039, 8064749, 8703541, 10911131, 11416333, 11775379, 14410781, 15445627, 16862657, 18198313, 19496939, 26498461, 28597349, 30131633, 47349709, 51709273, 79914331, 108119389, 125579663, 169901897, 185489227, 200181443, 262575659, 331447963, 879057641, 1189313279, 1838029613, 2888332249, 20218325743]

約数ペア:

[(1, 20218325743), (7, 2888332249), (11, 1838029613), (17, 1189313279), (23, 879057641), (61, 331447963), (77, 262575659), (101, 200181443), (109, 185489227), (119, 169901897), (161, 125579663), (187, 108119389), (253, 79914331), (391, 51709273), (427, 47349709), (671, 30131633), (707, 28597349), (763, 26498461), (1037, 19496939), (1111, 18198313), (1199, 16862657), (1309, 15445627), (1403, 14410781), (1717, 11775379), (1771, 11416333), (1853, 10911131), (2323, 8703541), (2507, 8064749), (2737, 7387039), (4301, 4700843), (4697, 4304519), (6161, 3281663), (6649, 3040807), (7259, 2785277), (7777, 2599759), (8393, 2408951), (9821, 2058683), (11009, 1836527), (11407, 1772449), (12019, 1682197), (12971, 1558733), (15433, 1310071), (16261, 1243363), (17549, 1152107), (18887, 1070489), (20383, 991921), (23851, 847693), (25553, 791231), (27577, 733159), (30107, 671549), (39491, 511973), (42619, 474397), (43127, 468809), (46543, 434401), (67771, 298333), (73139, 276437), (77063, 262361), (79849, 253207), (104737, 193039), (108031, 187153), (113033, 178871), (121099, 166957), (132209, 152927), (141703, 142681)]