19928708

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 35679840

約数和(自身を除く): 15751132

約数列:

[1, 2, 4, 73, 139, 146, 278, 292, 491, 556, 982, 1964, 10147, 20294, 35843, 40588, 68249, 71686, 136498, 143372, 272996, 4982177, 9964354, 19928708]

約数ペア:

[(1, 19928708), (2, 9964354), (4, 4982177), (73, 272996), (139, 143372), (146, 136498), (278, 71686), (292, 68249), (491, 40588), (556, 35843), (982, 20294), (1964, 10147)]