21525270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{569}}^1$

素因数の和:689

約数の個数: 64

約数和(自身を含む): 56306880

約数和(自身を除く): 34781610

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 97, 130, 194, 195, 291, 390, 485, 569, 582, 970, 1138, 1261, 1455, 1707, 2522, 2845, 2910, 3414, 3783, 5690, 6305, 7397, 7566, 8535, 12610, 14794, 17070, 18915, 22191, 36985, 37830, 44382, 55193, 73970, 110386, 110955, 165579, 221910, 275965, 331158, 551930, 717509, 827895, 1435018, 1655790, 2152527, 3587545, 4305054, 7175090, 10762635, 21525270]

約数ペア:

[(1, 21525270), (2, 10762635), (3, 7175090), (5, 4305054), (6, 3587545), (10, 2152527), (13, 1655790), (15, 1435018), (26, 827895), (30, 717509), (39, 551930), (65, 331158), (78, 275965), (97, 221910), (130, 165579), (194, 110955), (195, 110386), (291, 73970), (390, 55193), (485, 44382), (569, 37830), (582, 36985), (970, 22191), (1138, 18915), (1261, 17070), (1455, 14794), (1707, 12610), (2522, 8535), (2845, 7566), (2910, 7397), (3414, 6305), (3783, 5690)]