21073670

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{193}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 38970720

約数和(自身を除く): 17897050

約数列:

[1, 2, 5, 10, 61, 122, 179, 193, 305, 358, 386, 610, 895, 965, 1790, 1930, 10919, 11773, 21838, 23546, 34547, 54595, 58865, 69094, 109190, 117730, 172735, 345470, 2107367, 4214734, 10536835, 21073670]

約数ペア:

[(1, 21073670), (2, 10536835), (5, 4214734), (10, 2107367), (61, 345470), (122, 172735), (179, 117730), (193, 109190), (305, 69094), (358, 58865), (386, 54595), (610, 34547), (895, 23546), (965, 21838), (1790, 11773), (1930, 10919)]