19691945

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{383}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 9725527

約数列:

[1, 5, 7, 13, 35, 65, 91, 113, 383, 455, 565, 791, 1469, 1915, 2681, 3955, 4979, 7345, 10283, 13405, 24895, 34853, 43279, 51415, 174265, 216395, 302953, 562627, 1514765, 2813135, 3938389, 19691945]

約数ペア:

[(1, 19691945), (5, 3938389), (7, 2813135), (13, 1514765), (35, 562627), (65, 302953), (91, 216395), (113, 174265), (383, 51415), (455, 43279), (565, 34853), (791, 24895), (1469, 13405), (1915, 10283), (2681, 7345), (3955, 4979)]