18904788

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{1531}}^1$

素因数の和:1562

約数の個数: 72

約数和(自身を含む): 55764800

約数和(自身を除く): 36860012

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 343, 441, 588, 686, 882, 1029, 1372, 1531, 1764, 2058, 3062, 3087, 4116, 4593, 6124, 6174, 9186, 10717, 12348, 13779, 18372, 21434, 27558, 32151, 42868, 55116, 64302, 75019, 96453, 128604, 150038, 192906, 225057, 300076, 385812, 450114, 525133, 675171, 900228, 1050266, 1350342, 1575399, 2100532, 2700684, 3150798, 4726197, 6301596, 9452394, 18904788]

約数ペア:

[(1, 18904788), (2, 9452394), (3, 6301596), (4, 4726197), (6, 3150798), (7, 2700684), (9, 2100532), (12, 1575399), (14, 1350342), (18, 1050266), (21, 900228), (28, 675171), (36, 525133), (42, 450114), (49, 385812), (63, 300076), (84, 225057), (98, 192906), (126, 150038), (147, 128604), (196, 96453), (252, 75019), (294, 64302), (343, 55116), (441, 42868), (588, 32151), (686, 27558), (882, 21434), (1029, 18372), (1372, 13779), (1531, 12348), (1764, 10717), (2058, 9186), (3062, 6174), (3087, 6124), (4116, 4593)]