19906896

素因数分解:

$2^4\times 3^1\times {\mathrm{641}}^1\times {\mathrm{647}}^1$

素因数の和:1299

約数の個数: 40

約数和(自身を含む): 51585984

約数和(自身を除く): 31679088

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 641, 647, 1282, 1294, 1923, 1941, 2564, 2588, 3846, 3882, 5128, 5176, 7692, 7764, 10256, 10352, 15384, 15528, 30768, 31056, 414727, 829454, 1244181, 1658908, 2488362, 3317816, 4976724, 6635632, 9953448, 19906896]

約数ペア:

[(1, 19906896), (2, 9953448), (3, 6635632), (4, 4976724), (6, 3317816), (8, 2488362), (12, 1658908), (16, 1244181), (24, 829454), (48, 414727), (641, 31056), (647, 30768), (1282, 15528), (1294, 15384), (1923, 10352), (1941, 10256), (2564, 7764), (2588, 7692), (3846, 5176), (3882, 5128)]