20901608

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28711}}^1$

素因数の和:28737

約数の個数: 32

約数和(自身を含む): 48236160

約数和(自身を除く): 27334552

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28711, 57422, 114844, 200977, 229688, 373243, 401954, 746486, 803908, 1492972, 1607816, 2612701, 2985944, 5225402, 10450804, 20901608]

約数ペア:

[(1, 20901608), (2, 10450804), (4, 5225402), (7, 2985944), (8, 2612701), (13, 1607816), (14, 1492972), (26, 803908), (28, 746486), (52, 401954), (56, 373243), (91, 229688), (104, 200977), (182, 114844), (364, 57422), (728, 28711)]