21807818

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{373}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 36191232

約数和(自身を除く): 14383414

約数列:

[1, 2, 23, 31, 41, 46, 62, 82, 373, 713, 746, 943, 1271, 1426, 1886, 2542, 8579, 11563, 15293, 17158, 23126, 29233, 30586, 58466, 265949, 351739, 474083, 531898, 703478, 948166, 10903909, 21807818]

約数ペア:

[(1, 21807818), (2, 10903909), (23, 948166), (31, 703478), (41, 531898), (46, 474083), (62, 351739), (82, 265949), (373, 58466), (713, 30586), (746, 29233), (943, 23126), (1271, 17158), (1426, 15293), (1886, 11563), (2542, 8579)]