21957982

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:384

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 14620322

約数列:

[1, 2, 17, 31, 34, 62, 83, 166, 251, 502, 527, 1054, 1411, 2573, 2822, 4267, 5146, 7781, 8534, 15562, 20833, 41666, 43741, 87482, 132277, 264554, 354161, 645823, 708322, 1291646, 10978991, 21957982]

約数ペア:

[(1, 21957982), (2, 10978991), (17, 1291646), (31, 708322), (34, 645823), (62, 354161), (83, 264554), (166, 132277), (251, 87482), (502, 43741), (527, 41666), (1054, 20833), (1411, 15562), (2573, 8534), (2822, 7781), (4267, 5146)]