642645423

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{351749}}^1$

素因数の和:351791

約数の個数: 24

約数和(自身を含む): 1097460000

約数和(自身を除く): 454814577

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 351749, 1055247, 2462243, 3165741, 7386729, 10200721, 22160187, 30602163, 71405047, 91806489, 214215141, 642645423]

約数ペア:

[(1, 642645423), (3, 214215141), (7, 91806489), (9, 71405047), (21, 30602163), (29, 22160187), (63, 10200721), (87, 7386729), (203, 3165741), (261, 2462243), (609, 1055247), (1827, 351749)]