21358492025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{21179}}^1$

素因数の和:21338

約数の個数: 48

約数和(自身を含む): 29782468800

約数和(自身を除く): 8423976775

約数列:

[1, 5, 13, 25, 29, 65, 107, 145, 325, 377, 535, 725, 1391, 1885, 2675, 3103, 6955, 9425, 15515, 21179, 34775, 40339, 77575, 105895, 201695, 275327, 529475, 614191, 1008475, 1376635, 2266153, 3070955, 6883175, 7984483, 11330765, 15354775, 29459989, 39922415, 56653825, 65718437, 147299945, 199612075, 328592185, 736499725, 854339681, 1642960925, 4271698405, 21358492025]

約数ペア:

[(1, 21358492025), (5, 4271698405), (13, 1642960925), (25, 854339681), (29, 736499725), (65, 328592185), (107, 199612075), (145, 147299945), (325, 65718437), (377, 56653825), (535, 39922415), (725, 29459989), (1391, 15354775), (1885, 11330765), (2675, 7984483), (3103, 6883175), (6955, 3070955), (9425, 2266153), (15515, 1376635), (21179, 1008475), (34775, 614191), (40339, 529475), (77575, 275327), (105895, 201695)]