19166888

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{293}}^1$

素因数の和:366

約数の個数: 64

約数和(自身を含む): 42230160

約数和(自身を除く): 23063272

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 37, 52, 68, 74, 104, 136, 148, 221, 293, 296, 442, 481, 586, 629, 884, 962, 1172, 1258, 1768, 1924, 2344, 2516, 3809, 3848, 4981, 5032, 7618, 8177, 9962, 10841, 15236, 16354, 19924, 21682, 30472, 32708, 39848, 43364, 64753, 65416, 86728, 129506, 140933, 184297, 259012, 281866, 368594, 518024, 563732, 737188, 1127464, 1474376, 2395861, 4791722, 9583444, 19166888]

約数ペア:

[(1, 19166888), (2, 9583444), (4, 4791722), (8, 2395861), (13, 1474376), (17, 1127464), (26, 737188), (34, 563732), (37, 518024), (52, 368594), (68, 281866), (74, 259012), (104, 184297), (136, 140933), (148, 129506), (221, 86728), (293, 65416), (296, 64753), (442, 43364), (481, 39848), (586, 32708), (629, 30472), (884, 21682), (962, 19924), (1172, 16354), (1258, 15236), (1768, 10841), (1924, 9962), (2344, 8177), (2516, 7618), (3809, 5032), (3848, 4981)]