21963320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{32299}}^1$

素因数の和:32327

約数の個数: 32

約数和(自身を含む): 52326000

約数和(自身を除く): 30362680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 32299, 64598, 129196, 161495, 258392, 322990, 549083, 645980, 1098166, 1291960, 2196332, 2745415, 4392664, 5490830, 10981660, 21963320]

約数ペア:

[(1, 21963320), (2, 10981660), (4, 5490830), (5, 4392664), (8, 2745415), (10, 2196332), (17, 1291960), (20, 1098166), (34, 645980), (40, 549083), (68, 322990), (85, 258392), (136, 161495), (170, 129196), (340, 64598), (680, 32299)]