20913832

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{617}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 41529600

約数和(自身を除く): 20615768

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 223, 446, 617, 892, 1234, 1784, 2468, 4237, 4936, 8474, 11723, 16948, 23446, 33896, 46892, 93784, 137591, 275182, 550364, 1100728, 2614229, 5228458, 10456916, 20913832]

約数ペア:

[(1, 20913832), (2, 10456916), (4, 5228458), (8, 2614229), (19, 1100728), (38, 550364), (76, 275182), (152, 137591), (223, 93784), (446, 46892), (617, 33896), (892, 23446), (1234, 16948), (1784, 11723), (2468, 8474), (4237, 4936)]