21358888

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1693}}^1$

素因数の和:1801

約数の個数: 32

約数和(自身を含む): 42688800

約数和(自身を除く): 21329912

約数列:

[1, 2, 4, 8, 19, 38, 76, 83, 152, 166, 332, 664, 1577, 1693, 3154, 3386, 6308, 6772, 12616, 13544, 32167, 64334, 128668, 140519, 257336, 281038, 562076, 1124152, 2669861, 5339722, 10679444, 21358888]

約数ペア:

[(1, 21358888), (2, 10679444), (4, 5339722), (8, 2669861), (19, 1124152), (38, 562076), (76, 281038), (83, 257336), (152, 140519), (166, 128668), (332, 64334), (664, 32167), (1577, 13544), (1693, 12616), (3154, 6772), (3386, 6308)]