21654416

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:216

約数の個数: 80

約数和(自身を含む): 50889600

約数和(自身を除く): 29235184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 59, 112, 113, 116, 118, 203, 226, 232, 236, 406, 413, 452, 464, 472, 791, 812, 826, 904, 944, 1582, 1624, 1652, 1711, 1808, 3164, 3248, 3277, 3304, 3422, 6328, 6554, 6608, 6667, 6844, 11977, 12656, 13108, 13334, 13688, 22939, 23954, 26216, 26668, 27376, 45878, 46669, 47908, 52432, 53336, 91756, 93338, 95816, 106672, 183512, 186676, 191632, 193343, 367024, 373352, 386686, 746704, 773372, 1353401, 1546744, 2706802, 3093488, 5413604, 10827208, 21654416]

約数ペア:

[(1, 21654416), (2, 10827208), (4, 5413604), (7, 3093488), (8, 2706802), (14, 1546744), (16, 1353401), (28, 773372), (29, 746704), (56, 386686), (58, 373352), (59, 367024), (112, 193343), (113, 191632), (116, 186676), (118, 183512), (203, 106672), (226, 95816), (232, 93338), (236, 91756), (406, 53336), (413, 52432), (452, 47908), (464, 46669), (472, 45878), (791, 27376), (812, 26668), (826, 26216), (904, 23954), (944, 22939), (1582, 13688), (1624, 13334), (1652, 13108), (1711, 12656), (1808, 11977), (3164, 6844), (3248, 6667), (3277, 6608), (3304, 6554), (3422, 6328)]