21057730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1277}}^1$

素因数の和:1398

約数の個数: 32

約数和(自身を含む): 40579056

約数和(自身を除く): 19521326

約数列:

[1, 2, 5, 10, 17, 34, 85, 97, 170, 194, 485, 970, 1277, 1649, 2554, 3298, 6385, 8245, 12770, 16490, 21709, 43418, 108545, 123869, 217090, 247738, 619345, 1238690, 2105773, 4211546, 10528865, 21057730]

約数ペア:

[(1, 21057730), (2, 10528865), (5, 4211546), (10, 2105773), (17, 1238690), (34, 619345), (85, 247738), (97, 217090), (170, 123869), (194, 108545), (485, 43418), (970, 21709), (1277, 16490), (1649, 12770), (2554, 8245), (3298, 6385)]