21457060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{283}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 48093696

約数和(自身を除く): 26636636

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 223, 283, 340, 446, 566, 892, 1115, 1132, 1415, 2230, 2830, 3791, 4460, 4811, 5660, 7582, 9622, 15164, 18955, 19244, 24055, 37910, 48110, 63109, 75820, 96220, 126218, 252436, 315545, 631090, 1072853, 1262180, 2145706, 4291412, 5364265, 10728530, 21457060]

約数ペア:

[(1, 21457060), (2, 10728530), (4, 5364265), (5, 4291412), (10, 2145706), (17, 1262180), (20, 1072853), (34, 631090), (68, 315545), (85, 252436), (170, 126218), (223, 96220), (283, 75820), (340, 63109), (446, 48110), (566, 37910), (892, 24055), (1115, 19244), (1132, 18955), (1415, 15164), (2230, 9622), (2830, 7582), (3791, 5660), (4460, 4811)]