20713966

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:329

約数の個数: 48

約数和(自身を含む): 39644640

約数和(自身を除く): 18930674

約数列:

[1, 2, 7, 13, 14, 26, 49, 71, 91, 98, 142, 182, 229, 458, 497, 637, 923, 994, 1274, 1603, 1846, 2977, 3206, 3479, 5954, 6461, 6958, 11221, 12922, 16259, 20839, 22442, 32518, 41678, 45227, 90454, 113813, 145873, 211367, 227626, 291746, 422734, 796691, 1479569, 1593382, 2959138, 10356983, 20713966]

約数ペア:

[(1, 20713966), (2, 10356983), (7, 2959138), (13, 1593382), (14, 1479569), (26, 796691), (49, 422734), (71, 291746), (91, 227626), (98, 211367), (142, 145873), (182, 113813), (229, 90454), (458, 45227), (497, 41678), (637, 32518), (923, 22442), (994, 20839), (1274, 16259), (1603, 12922), (1846, 11221), (2977, 6958), (3206, 6461), (3479, 5954)]