18962008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4447}}^1$

素因数の和:4507

約数の個数: 32

約数和(自身を含む): 39231360

約数和(自身を除く): 20269352

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 4447, 8894, 17788, 35576, 57811, 115622, 182327, 231244, 364654, 462488, 729308, 1458616, 2370251, 4740502, 9481004, 18962008]

約数ペア:

[(1, 18962008), (2, 9481004), (4, 4740502), (8, 2370251), (13, 1458616), (26, 729308), (41, 462488), (52, 364654), (82, 231244), (104, 182327), (164, 115622), (328, 57811), (533, 35576), (1066, 17788), (2132, 8894), (4264, 4447)]