21081072

素因数分解:

$2^4\times 3^1\times {\mathrm{431}}^1\times {\mathrm{1019}}^1$

素因数の和:1461

約数の個数: 40

約数和(自身を含む): 54639360

約数和(自身を除く): 33558288

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 431, 862, 1019, 1293, 1724, 2038, 2586, 3057, 3448, 4076, 5172, 6114, 6896, 8152, 10344, 12228, 16304, 20688, 24456, 48912, 439189, 878378, 1317567, 1756756, 2635134, 3513512, 5270268, 7027024, 10540536, 21081072]

約数ペア:

[(1, 21081072), (2, 10540536), (3, 7027024), (4, 5270268), (6, 3513512), (8, 2635134), (12, 1756756), (16, 1317567), (24, 878378), (48, 439189), (431, 48912), (862, 24456), (1019, 20688), (1293, 16304), (1724, 12228), (2038, 10344), (2586, 8152), (3057, 6896), (3448, 6114), (4076, 5172)]