217647621

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{457}}^1\times {\mathrm{569}}^1$

素因数の和:1066

約数の個数: 32

約数和(自身を含む): 334156800

約数和(自身を除く): 116509179

約数列:

[1, 3, 9, 27, 31, 93, 279, 457, 569, 837, 1371, 1707, 4113, 5121, 12339, 14167, 15363, 17639, 42501, 52917, 127503, 158751, 260033, 382509, 476253, 780099, 2340297, 7020891, 8061023, 24183069, 72549207, 217647621]

約数ペア:

[(1, 217647621), (3, 72549207), (9, 24183069), (27, 8061023), (31, 7020891), (93, 2340297), (279, 780099), (457, 476253), (569, 382509), (837, 260033), (1371, 158751), (1707, 127503), (4113, 52917), (5121, 42501), (12339, 17639), (14167, 15363)]