19879376

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112951}}^1$

素因数の和:112970

約数の個数: 20

約数和(自身を含む): 42018144

約数和(自身を除く): 22138768

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112951, 225902, 451804, 903608, 1242461, 1807216, 2484922, 4969844, 9939688, 19879376]

約数ペア:

[(1, 19879376), (2, 9939688), (4, 4969844), (8, 2484922), (11, 1807216), (16, 1242461), (22, 903608), (44, 451804), (88, 225902), (176, 112951)]