21561382516

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{2677}}^1\times {\mathrm{54421}}^1$

素因数の和:57139

約数の個数: 24

約数和(自身を含む): 38767402856

約数和(自身を除く): 17206020340

約数列:

[1, 2, 4, 37, 74, 148, 2677, 5354, 10708, 54421, 99049, 108842, 198098, 217684, 396196, 2013577, 4027154, 8054308, 145685017, 291370034, 582740068, 5390345629, 10780691258, 21561382516]

約数ペア:

[(1, 21561382516), (2, 10780691258), (4, 5390345629), (37, 582740068), (74, 291370034), (148, 145685017), (2677, 8054308), (5354, 4027154), (10708, 2013577), (54421, 396196), (99049, 217684), (108842, 198098)]