31820481

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:151

約数の個数: 96

約数和(自身を含む): 63168768

約数和(自身を除く): 31348287

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 37, 51, 63, 73, 77, 99, 111, 119, 153, 187, 219, 231, 259, 333, 357, 407, 511, 561, 629, 657, 693, 777, 803, 1071, 1221, 1241, 1309, 1533, 1683, 1887, 2331, 2409, 2701, 2849, 3663, 3723, 3927, 4403, 4599, 5621, 5661, 6919, 7227, 8103, 8547, 8687, 11169, 11781, 13209, 13651, 16863, 18907, 20757, 24309, 25641, 26061, 29711, 39627, 40953, 45917, 48433, 50589, 56721, 62271, 78183, 89133, 95557, 122859, 137751, 145299, 170163, 207977, 267399, 286671, 321419, 413253, 435897, 505087, 623931, 860013, 964257, 1515261, 1871793, 2892771, 3535609, 4545783, 10606827, 31820481]

約数ペア:

[(1, 31820481), (3, 10606827), (7, 4545783), (9, 3535609), (11, 2892771), (17, 1871793), (21, 1515261), (33, 964257), (37, 860013), (51, 623931), (63, 505087), (73, 435897), (77, 413253), (99, 321419), (111, 286671), (119, 267399), (153, 207977), (187, 170163), (219, 145299), (231, 137751), (259, 122859), (333, 95557), (357, 89133), (407, 78183), (511, 62271), (561, 56721), (629, 50589), (657, 48433), (693, 45917), (777, 40953), (803, 39627), (1071, 29711), (1221, 26061), (1241, 25641), (1309, 24309), (1533, 20757), (1683, 18907), (1887, 16863), (2331, 13651), (2409, 13209), (2701, 11781), (2849, 11169), (3663, 8687), (3723, 8547), (3927, 8103), (4403, 7227), (4599, 6919), (5621, 5661)]