21000355015

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{1249}}^1\times {\mathrm{55127}}^1$

素因数の和:56442

約数の個数: 16

約数和(自身を含む): 25634520000

約数和(自身を除く): 4634164985

約数列:

[1, 5, 61, 305, 1249, 6245, 55127, 76189, 275635, 380945, 3362747, 16813735, 68853623, 344268115, 4200071003, 21000355015]

約数ペア:

[(1, 21000355015), (5, 4200071003), (61, 344268115), (305, 68853623), (1249, 16813735), (6245, 3362747), (55127, 380945), (76189, 275635)]