21573390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 54250560

約数和(自身を除く): 32677170

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 137, 145, 174, 181, 274, 290, 362, 411, 435, 543, 685, 822, 870, 905, 1086, 1370, 1810, 2055, 2715, 3973, 4110, 5249, 5430, 7946, 10498, 11919, 15747, 19865, 23838, 24797, 26245, 31494, 39730, 49594, 52490, 59595, 74391, 78735, 119190, 123985, 148782, 157470, 247970, 371955, 719113, 743910, 1438226, 2157339, 3595565, 4314678, 7191130, 10786695, 21573390]

約数ペア:

[(1, 21573390), (2, 10786695), (3, 7191130), (5, 4314678), (6, 3595565), (10, 2157339), (15, 1438226), (29, 743910), (30, 719113), (58, 371955), (87, 247970), (137, 157470), (145, 148782), (174, 123985), (181, 119190), (274, 78735), (290, 74391), (362, 59595), (411, 52490), (435, 49594), (543, 39730), (685, 31494), (822, 26245), (870, 24797), (905, 23838), (1086, 19865), (1370, 15747), (1810, 11919), (2055, 10498), (2715, 7946), (3973, 5430), (4110, 5249)]