21000879802

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{154153}}^1$

素因数の和:154462

約数の個数: 32

約数和(自身を含む): 37115350272

約数和(自身を除く): 16114470470

約数列:

[1, 2, 7, 14, 37, 74, 259, 263, 518, 526, 1841, 3682, 9731, 19462, 68117, 136234, 154153, 308306, 1079071, 2158142, 5703661, 11407322, 39925627, 40542239, 79851254, 81084478, 283795673, 567591346, 1500062843, 3000125686, 10500439901, 21000879802]

約数ペア:

[(1, 21000879802), (2, 10500439901), (7, 3000125686), (14, 1500062843), (37, 567591346), (74, 283795673), (259, 81084478), (263, 79851254), (518, 40542239), (526, 39925627), (1841, 11407322), (3682, 5703661), (9731, 2158142), (19462, 1079071), (68117, 308306), (136234, 154153)]