72312021

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{4231}}^1$

素因数の和:4454

約数の個数: 20

約数和(自身を含む): 108559264

約数和(自身を除く): 36247243

約数列:

[1, 3, 9, 27, 81, 211, 633, 1899, 4231, 5697, 12693, 17091, 38079, 114237, 342711, 892741, 2678223, 8034669, 24104007, 72312021]

約数ペア:

[(1, 72312021), (3, 24104007), (9, 8034669), (27, 2678223), (81, 892741), (211, 342711), (633, 114237), (1899, 38079), (4231, 17091), (5697, 12693)]