20678364

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2647}}^1$

素因数の和:2695

約数の個数: 72

約数和(自身を含む): 61687808

約数和(自身を除く): 41009444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2604, 2647, 3906, 5294, 7812, 7941, 10588, 15882, 18529, 23823, 31764, 37058, 47646, 55587, 74116, 82057, 95292, 111174, 164114, 166761, 222348, 246171, 328228, 333522, 492342, 574399, 667044, 738513, 984684, 1148798, 1477026, 1723197, 2297596, 2954052, 3446394, 5169591, 6892788, 10339182, 20678364]

約数ペア:

[(1, 20678364), (2, 10339182), (3, 6892788), (4, 5169591), (6, 3446394), (7, 2954052), (9, 2297596), (12, 1723197), (14, 1477026), (18, 1148798), (21, 984684), (28, 738513), (31, 667044), (36, 574399), (42, 492342), (62, 333522), (63, 328228), (84, 246171), (93, 222348), (124, 166761), (126, 164114), (186, 111174), (217, 95292), (252, 82057), (279, 74116), (372, 55587), (434, 47646), (558, 37058), (651, 31764), (868, 23823), (1116, 18529), (1302, 15882), (1953, 10588), (2604, 7941), (2647, 7812), (3906, 5294)]