19806512

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5923}}^1$

素因数の和:5961

約数の個数: 40

約数和(自身を含む): 44074560

約数和(自身を除く): 24268048

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 5923, 11846, 23692, 47384, 65153, 94768, 112537, 130306, 225074, 260612, 450148, 521224, 900296, 1042448, 1237907, 1800592, 2475814, 4951628, 9903256, 19806512]

約数ペア:

[(1, 19806512), (2, 9903256), (4, 4951628), (8, 2475814), (11, 1800592), (16, 1237907), (19, 1042448), (22, 900296), (38, 521224), (44, 450148), (76, 260612), (88, 225074), (152, 130306), (176, 112537), (209, 94768), (304, 65153), (418, 47384), (836, 23692), (1672, 11846), (3344, 5923)]