21593940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 63431424

約数和(自身を除く): 41837484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 71, 74, 111, 137, 142, 148, 185, 213, 222, 274, 284, 355, 370, 411, 426, 444, 548, 555, 685, 710, 740, 822, 852, 1065, 1110, 1370, 1420, 1644, 2055, 2130, 2220, 2627, 2740, 4110, 4260, 5069, 5254, 7881, 8220, 9727, 10138, 10508, 13135, 15207, 15762, 19454, 20276, 25345, 26270, 29181, 30414, 31524, 38908, 39405, 48635, 50690, 52540, 58362, 60828, 76035, 78810, 97270, 101380, 116724, 145905, 152070, 157620, 194540, 291810, 304140, 359899, 583620, 719798, 1079697, 1439596, 1799495, 2159394, 3598990, 4318788, 5398485, 7197980, 10796970, 21593940]

約数ペア:

[(1, 21593940), (2, 10796970), (3, 7197980), (4, 5398485), (5, 4318788), (6, 3598990), (10, 2159394), (12, 1799495), (15, 1439596), (20, 1079697), (30, 719798), (37, 583620), (60, 359899), (71, 304140), (74, 291810), (111, 194540), (137, 157620), (142, 152070), (148, 145905), (185, 116724), (213, 101380), (222, 97270), (274, 78810), (284, 76035), (355, 60828), (370, 58362), (411, 52540), (426, 50690), (444, 48635), (548, 39405), (555, 38908), (685, 31524), (710, 30414), (740, 29181), (822, 26270), (852, 25345), (1065, 20276), (1110, 19454), (1370, 15762), (1420, 15207), (1644, 13135), (2055, 10508), (2130, 10138), (2220, 9727), (2627, 8220), (2740, 7881), (4110, 5254), (4260, 5069)]