21169624

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{601}}^1$

素因数の和:668

約数の個数: 64

約数和(自身を含む): 49412160

約数和(自身を除く): 28242536

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 37, 56, 68, 74, 119, 136, 148, 238, 259, 296, 476, 518, 601, 629, 952, 1036, 1202, 1258, 2072, 2404, 2516, 4207, 4403, 4808, 5032, 8414, 8806, 10217, 16828, 17612, 20434, 22237, 33656, 35224, 40868, 44474, 71519, 81736, 88948, 143038, 155659, 177896, 286076, 311318, 378029, 572152, 622636, 756058, 1245272, 1512116, 2646203, 3024232, 5292406, 10584812, 21169624]

約数ペア:

[(1, 21169624), (2, 10584812), (4, 5292406), (7, 3024232), (8, 2646203), (14, 1512116), (17, 1245272), (28, 756058), (34, 622636), (37, 572152), (56, 378029), (68, 311318), (74, 286076), (119, 177896), (136, 155659), (148, 143038), (238, 88948), (259, 81736), (296, 71519), (476, 44474), (518, 40868), (601, 35224), (629, 33656), (952, 22237), (1036, 20434), (1202, 17612), (1258, 16828), (2072, 10217), (2404, 8806), (2516, 8414), (4207, 5032), (4403, 4808)]