21672824

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 45554400

約数和(自身を除く): 23881576

約数列:

[1, 2, 4, 8, 17, 34, 37, 59, 68, 73, 74, 118, 136, 146, 148, 236, 292, 296, 472, 584, 629, 1003, 1241, 1258, 2006, 2183, 2482, 2516, 2701, 4012, 4307, 4366, 4964, 5032, 5402, 8024, 8614, 8732, 9928, 10804, 17228, 17464, 21608, 34456, 37111, 45917, 73219, 74222, 91834, 146438, 148444, 159359, 183668, 292876, 296888, 318718, 367336, 585752, 637436, 1274872, 2709103, 5418206, 10836412, 21672824]

約数ペア:

[(1, 21672824), (2, 10836412), (4, 5418206), (8, 2709103), (17, 1274872), (34, 637436), (37, 585752), (59, 367336), (68, 318718), (73, 296888), (74, 292876), (118, 183668), (136, 159359), (146, 148444), (148, 146438), (236, 91834), (292, 74222), (296, 73219), (472, 45917), (584, 37111), (629, 34456), (1003, 21608), (1241, 17464), (1258, 17228), (2006, 10804), (2183, 9928), (2482, 8732), (2516, 8614), (2701, 8024), (4012, 5402), (4307, 5032), (4366, 4964)]