21260468

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6823}}^1$

素因数の和:6887

約数の個数: 24

約数和(自身を含む): 40125120

約数和(自身を除く): 18864652

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6823, 13646, 27292, 129637, 259274, 279743, 518548, 559486, 1118972, 5315117, 10630234, 21260468]

約数ペア:

[(1, 21260468), (2, 10630234), (4, 5315117), (19, 1118972), (38, 559486), (41, 518548), (76, 279743), (82, 259274), (164, 129637), (779, 27292), (1558, 13646), (3116, 6823)]