20557992

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9413}}^1$

素因数の和:9442

約数の個数: 64

約数和(自身を含む): 63262080

約数和(自身を除く): 42704088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 273, 312, 364, 546, 728, 1092, 2184, 9413, 18826, 28239, 37652, 56478, 65891, 75304, 112956, 122369, 131782, 197673, 225912, 244738, 263564, 367107, 395346, 489476, 527128, 734214, 790692, 856583, 978952, 1468428, 1581384, 1713166, 2569749, 2936856, 3426332, 5139498, 6852664, 10278996, 20557992]

約数ペア:

[(1, 20557992), (2, 10278996), (3, 6852664), (4, 5139498), (6, 3426332), (7, 2936856), (8, 2569749), (12, 1713166), (13, 1581384), (14, 1468428), (21, 978952), (24, 856583), (26, 790692), (28, 734214), (39, 527128), (42, 489476), (52, 395346), (56, 367107), (78, 263564), (84, 244738), (91, 225912), (104, 197673), (156, 131782), (168, 122369), (182, 112956), (273, 75304), (312, 65891), (364, 56478), (546, 37652), (728, 28239), (1092, 18826), (2184, 9413)]