21534760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41413}}^1$

素因数の和:41437

約数の個数: 32

約数和(自身を含む): 52181640

約数和(自身を除く): 30646880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41413, 82826, 165652, 207065, 331304, 414130, 538369, 828260, 1076738, 1656520, 2153476, 2691845, 4306952, 5383690, 10767380, 21534760]

約数ペア:

[(1, 21534760), (2, 10767380), (4, 5383690), (5, 4306952), (8, 2691845), (10, 2153476), (13, 1656520), (20, 1076738), (26, 828260), (40, 538369), (52, 414130), (65, 331304), (104, 207065), (130, 165652), (260, 82826), (520, 41413)]