28381886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:396

約数の個数: 32

約数和(自身を含む): 47637408

約数和(自身を除く): 19255522

約数列:

[1, 2, 13, 26, 37, 74, 163, 181, 326, 362, 481, 962, 2119, 2353, 4238, 4706, 6031, 6697, 12062, 13394, 29503, 59006, 78403, 87061, 156806, 174122, 383539, 767078, 1091611, 2183222, 14190943, 28381886]

約数ペア:

[(1, 28381886), (2, 14190943), (13, 2183222), (26, 1091611), (37, 767078), (74, 383539), (163, 174122), (181, 156806), (326, 87061), (362, 78403), (481, 59006), (962, 29503), (2119, 13394), (2353, 12062), (4238, 6697), (4706, 6031)]