16865996

素因数分解:

$2^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 36288000

約数和(自身を除く): 19422004

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 343, 532, 647, 686, 931, 1294, 1372, 1862, 2588, 3724, 4529, 6517, 9058, 12293, 13034, 18116, 24586, 26068, 31703, 49172, 63406, 86051, 126812, 172102, 221921, 344204, 443842, 602357, 887684, 1204714, 2409428, 4216499, 8432998, 16865996]

約数ペア:

[(1, 16865996), (2, 8432998), (4, 4216499), (7, 2409428), (14, 1204714), (19, 887684), (28, 602357), (38, 443842), (49, 344204), (76, 221921), (98, 172102), (133, 126812), (196, 86051), (266, 63406), (343, 49172), (532, 31703), (647, 26068), (686, 24586), (931, 18116), (1294, 13034), (1372, 12293), (1862, 9058), (2588, 6517), (3724, 4529)]