21572072

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 41446080

約数和(自身を除く): 19874008

約数列:

[1, 2, 4, 8, 71, 142, 163, 233, 284, 326, 466, 568, 652, 932, 1304, 1864, 11573, 16543, 23146, 33086, 37979, 46292, 66172, 75958, 92584, 132344, 151916, 303832, 2696509, 5393018, 10786036, 21572072]

約数ペア:

[(1, 21572072), (2, 10786036), (4, 5393018), (8, 2696509), (71, 303832), (142, 151916), (163, 132344), (233, 92584), (284, 75958), (326, 66172), (466, 46292), (568, 37979), (652, 33086), (932, 23146), (1304, 16543), (1864, 11573)]