18921224

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 42854400

約数和(自身を除く): 23933176

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 61, 116, 122, 191, 203, 232, 244, 382, 406, 427, 488, 764, 812, 854, 1337, 1528, 1624, 1708, 1769, 2674, 3416, 3538, 5348, 5539, 7076, 10696, 11078, 11651, 12383, 14152, 22156, 23302, 24766, 38773, 44312, 46604, 49532, 77546, 81557, 93208, 99064, 155092, 163114, 310184, 326228, 337879, 652456, 675758, 1351516, 2365153, 2703032, 4730306, 9460612, 18921224]

約数ペア:

[(1, 18921224), (2, 9460612), (4, 4730306), (7, 2703032), (8, 2365153), (14, 1351516), (28, 675758), (29, 652456), (56, 337879), (58, 326228), (61, 310184), (116, 163114), (122, 155092), (191, 99064), (203, 93208), (232, 81557), (244, 77546), (382, 49532), (406, 46604), (427, 44312), (488, 38773), (764, 24766), (812, 23302), (854, 22156), (1337, 14152), (1528, 12383), (1624, 11651), (1708, 11078), (1769, 10696), (2674, 7076), (3416, 5539), (3538, 5348)]