19881848

素因数分解:

$2^3\times 7^2\times {\mathrm{67}}^1\times {\mathrm{757}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 44070120

約数和(自身を除く): 24188272

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 67, 98, 134, 196, 268, 392, 469, 536, 757, 938, 1514, 1876, 3028, 3283, 3752, 5299, 6056, 6566, 10598, 13132, 21196, 26264, 37093, 42392, 50719, 74186, 101438, 148372, 202876, 296744, 355033, 405752, 710066, 1420132, 2485231, 2840264, 4970462, 9940924, 19881848]

約数ペア:

[(1, 19881848), (2, 9940924), (4, 4970462), (7, 2840264), (8, 2485231), (14, 1420132), (28, 710066), (49, 405752), (56, 355033), (67, 296744), (98, 202876), (134, 148372), (196, 101438), (268, 74186), (392, 50719), (469, 42392), (536, 37093), (757, 26264), (938, 21196), (1514, 13132), (1876, 10598), (3028, 6566), (3283, 6056), (3752, 5299)]