643671

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{601}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 1126944

約数和(自身を除く): 483273

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 601, 1071, 1803, 4207, 5409, 10217, 12621, 30651, 37863, 71519, 91953, 214557, 643671]

約数ペア:

[(1, 643671), (3, 214557), (7, 91953), (9, 71519), (17, 37863), (21, 30651), (51, 12621), (63, 10217), (119, 5409), (153, 4207), (357, 1803), (601, 1071)]