21890704

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2039}}^1$

素因数の和:2119

約数の個数: 40

約数和(自身を含む): 47050560

約数和(自身を除く): 25159856

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 61, 88, 122, 176, 244, 488, 671, 976, 1342, 2039, 2684, 4078, 5368, 8156, 10736, 16312, 22429, 32624, 44858, 89716, 124379, 179432, 248758, 358864, 497516, 995032, 1368169, 1990064, 2736338, 5472676, 10945352, 21890704]

約数ペア:

[(1, 21890704), (2, 10945352), (4, 5472676), (8, 2736338), (11, 1990064), (16, 1368169), (22, 995032), (44, 497516), (61, 358864), (88, 248758), (122, 179432), (176, 124379), (244, 89716), (488, 44858), (671, 32624), (976, 22429), (1342, 16312), (2039, 10736), (2684, 8156), (4078, 5368)]