61521855

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{947}}^1$

素因数の和:1087

約数の個数: 32

約数和(自身を含む): 101564928

約数和(自身を除く): 40043073

約数列:

[1, 3, 5, 15, 61, 71, 183, 213, 305, 355, 915, 947, 1065, 2841, 4331, 4735, 12993, 14205, 21655, 57767, 64965, 67237, 173301, 201711, 288835, 336185, 866505, 1008555, 4101457, 12304371, 20507285, 61521855]

約数ペア:

[(1, 61521855), (3, 20507285), (5, 12304371), (15, 4101457), (61, 1008555), (71, 866505), (183, 336185), (213, 288835), (305, 201711), (355, 173301), (915, 67237), (947, 64965), (1065, 57767), (2841, 21655), (4331, 14205), (4735, 12993)]