21426273

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 37065600

約数和(自身を除く): 15639327

約数列:

[1, 3, 9, 11, 17, 29, 33, 51, 87, 99, 153, 187, 261, 319, 439, 493, 561, 957, 1317, 1479, 1683, 2871, 3951, 4437, 4829, 5423, 7463, 12731, 14487, 16269, 22389, 38193, 43461, 48807, 67167, 82093, 114579, 140041, 216427, 246279, 420123, 649281, 738837, 1260369, 1947843, 2380697, 7142091, 21426273]

約数ペア:

[(1, 21426273), (3, 7142091), (9, 2380697), (11, 1947843), (17, 1260369), (29, 738837), (33, 649281), (51, 420123), (87, 246279), (99, 216427), (153, 140041), (187, 114579), (261, 82093), (319, 67167), (439, 48807), (493, 43461), (561, 38193), (957, 22389), (1317, 16269), (1479, 14487), (1683, 12731), (2871, 7463), (3951, 5423), (4437, 4829)]