20499336

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1$

素因数の和:228

約数の個数: 144

約数和(自身を含む): 66082380

約数和(自身を除く): 45583044

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 18, 22, 24, 26, 33, 36, 39, 44, 52, 66, 72, 78, 88, 99, 104, 117, 121, 132, 143, 156, 181, 198, 234, 242, 264, 286, 312, 362, 363, 396, 429, 468, 484, 543, 572, 724, 726, 792, 858, 936, 968, 1086, 1089, 1144, 1287, 1448, 1452, 1573, 1629, 1716, 1991, 2172, 2178, 2353, 2574, 2904, 3146, 3258, 3432, 3982, 4344, 4356, 4706, 4719, 5148, 5973, 6292, 6516, 7059, 7964, 8712, 9412, 9438, 10296, 11946, 12584, 13032, 14118, 14157, 15928, 17919, 18824, 18876, 21177, 21901, 23892, 25883, 28236, 28314, 35838, 37752, 42354, 43802, 47784, 51766, 56472, 56628, 65703, 71676, 77649, 84708, 87604, 103532, 113256, 131406, 143352, 155298, 169416, 175208, 197109, 207064, 232947, 262812, 284713, 310596, 394218, 465894, 525624, 569426, 621192, 788436, 854139, 931788, 1138852, 1576872, 1708278, 1863576, 2277704, 2562417, 3416556, 5124834, 6833112, 10249668, 20499336]

約数ペア:

[(1, 20499336), (2, 10249668), (3, 6833112), (4, 5124834), (6, 3416556), (8, 2562417), (9, 2277704), (11, 1863576), (12, 1708278), (13, 1576872), (18, 1138852), (22, 931788), (24, 854139), (26, 788436), (33, 621192), (36, 569426), (39, 525624), (44, 465894), (52, 394218), (66, 310596), (72, 284713), (78, 262812), (88, 232947), (99, 207064), (104, 197109), (117, 175208), (121, 169416), (132, 155298), (143, 143352), (156, 131406), (181, 113256), (198, 103532), (234, 87604), (242, 84708), (264, 77649), (286, 71676), (312, 65703), (362, 56628), (363, 56472), (396, 51766), (429, 47784), (468, 43802), (484, 42354), (543, 37752), (572, 35838), (724, 28314), (726, 28236), (792, 25883), (858, 23892), (936, 21901), (968, 21177), (1086, 18876), (1089, 18824), (1144, 17919), (1287, 15928), (1448, 14157), (1452, 14118), (1573, 13032), (1629, 12584), (1716, 11946), (1991, 10296), (2172, 9438), (2178, 9412), (2353, 8712), (2574, 7964), (2904, 7059), (3146, 6516), (3258, 6292), (3432, 5973), (3982, 5148), (4344, 4719), (4356, 4706)]