20929806

素因数分解:

$2^1\times 3^3\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 27592434

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 71, 103, 106, 142, 159, 206, 213, 309, 318, 426, 477, 618, 639, 927, 954, 1278, 1431, 1854, 1917, 2781, 2862, 3763, 3834, 5459, 5562, 7313, 7526, 10918, 11289, 14626, 16377, 21939, 22578, 32754, 33867, 43878, 49131, 65817, 67734, 98262, 101601, 131634, 147393, 197451, 203202, 294786, 387589, 394902, 775178, 1162767, 2325534, 3488301, 6976602, 10464903, 20929806]

約数ペア:

[(1, 20929806), (2, 10464903), (3, 6976602), (6, 3488301), (9, 2325534), (18, 1162767), (27, 775178), (53, 394902), (54, 387589), (71, 294786), (103, 203202), (106, 197451), (142, 147393), (159, 131634), (206, 101601), (213, 98262), (309, 67734), (318, 65817), (426, 49131), (477, 43878), (618, 33867), (639, 32754), (927, 22578), (954, 21939), (1278, 16377), (1431, 14626), (1854, 11289), (1917, 10918), (2781, 7526), (2862, 7313), (3763, 5562), (3834, 5459)]