21581874

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{70529}}^1$

素因数の和:70554

約数の個数: 24

約数和(自身を含む): 49512060

約数和(自身を除く): 27930186

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 70529, 141058, 211587, 423174, 634761, 1198993, 1269522, 2397986, 3596979, 7193958, 10790937, 21581874]

約数ペア:

[(1, 21581874), (2, 10790937), (3, 7193958), (6, 3596979), (9, 2397986), (17, 1269522), (18, 1198993), (34, 634761), (51, 423174), (102, 211587), (153, 141058), (306, 70529)]