21920752

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1$

素因数の和:458

約数の個数: 80

約数和(自身を含む): 53300160

約数和(自身を除く): 31379408

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 29, 34, 56, 58, 68, 112, 116, 119, 136, 203, 232, 238, 272, 397, 406, 464, 476, 493, 794, 812, 952, 986, 1588, 1624, 1904, 1972, 2779, 3176, 3248, 3451, 3944, 5558, 6352, 6749, 6902, 7888, 11116, 11513, 13498, 13804, 22232, 23026, 26996, 27608, 44464, 46052, 47243, 53992, 55216, 80591, 92104, 94486, 107984, 161182, 184208, 188972, 195721, 322364, 377944, 391442, 644728, 755888, 782884, 1289456, 1370047, 1565768, 2740094, 3131536, 5480188, 10960376, 21920752]

約数ペア:

[(1, 21920752), (2, 10960376), (4, 5480188), (7, 3131536), (8, 2740094), (14, 1565768), (16, 1370047), (17, 1289456), (28, 782884), (29, 755888), (34, 644728), (56, 391442), (58, 377944), (68, 322364), (112, 195721), (116, 188972), (119, 184208), (136, 161182), (203, 107984), (232, 94486), (238, 92104), (272, 80591), (397, 55216), (406, 53992), (464, 47243), (476, 46052), (493, 44464), (794, 27608), (812, 26996), (952, 23026), (986, 22232), (1588, 13804), (1624, 13498), (1904, 11513), (1972, 11116), (2779, 7888), (3176, 6902), (3248, 6749), (3451, 6352), (3944, 5558)]