21997660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 31345700

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 29, 34, 46, 58, 68, 85, 92, 97, 115, 116, 145, 170, 194, 230, 290, 340, 388, 391, 460, 485, 493, 580, 667, 782, 970, 986, 1334, 1564, 1649, 1940, 1955, 1972, 2231, 2465, 2668, 2813, 3298, 3335, 3910, 4462, 4930, 5626, 6596, 6670, 7820, 8245, 8924, 9860, 11155, 11252, 11339, 13340, 14065, 16490, 22310, 22678, 28130, 32980, 37927, 44620, 45356, 47821, 56260, 56695, 64699, 75854, 95642, 113390, 129398, 151708, 189635, 191284, 226780, 239105, 258796, 323495, 379270, 478210, 646990, 758540, 956420, 1099883, 1293980, 2199766, 4399532, 5499415, 10998830, 21997660]

約数ペア:

[(1, 21997660), (2, 10998830), (4, 5499415), (5, 4399532), (10, 2199766), (17, 1293980), (20, 1099883), (23, 956420), (29, 758540), (34, 646990), (46, 478210), (58, 379270), (68, 323495), (85, 258796), (92, 239105), (97, 226780), (115, 191284), (116, 189635), (145, 151708), (170, 129398), (194, 113390), (230, 95642), (290, 75854), (340, 64699), (388, 56695), (391, 56260), (460, 47821), (485, 45356), (493, 44620), (580, 37927), (667, 32980), (782, 28130), (970, 22678), (986, 22310), (1334, 16490), (1564, 14065), (1649, 13340), (1940, 11339), (1955, 11252), (1972, 11155), (2231, 9860), (2465, 8924), (2668, 8245), (2813, 7820), (3298, 6670), (3335, 6596), (3910, 5626), (4462, 4930)]