21140710

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{271}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 18516890

約数列:

[1, 2, 5, 10, 29, 58, 145, 269, 271, 290, 538, 542, 1345, 1355, 2690, 2710, 7801, 7859, 15602, 15718, 39005, 39295, 72899, 78010, 78590, 145798, 364495, 728990, 2114071, 4228142, 10570355, 21140710]

約数ペア:

[(1, 21140710), (2, 10570355), (5, 4228142), (10, 2114071), (29, 728990), (58, 364495), (145, 145798), (269, 78590), (271, 78010), (290, 72899), (538, 39295), (542, 39005), (1345, 15718), (1355, 15602), (2690, 7859), (2710, 7801)]