18994984

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7351}}^1$

素因数の和:7393

約数の個数: 32

約数和(自身を含む): 39700800

約数和(自身を除く): 20705816

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 7351, 14702, 29404, 58808, 124967, 139669, 249934, 279338, 499868, 558676, 999736, 1117352, 2374373, 4748746, 9497492, 18994984]

約数ペア:

[(1, 18994984), (2, 9497492), (4, 4748746), (8, 2374373), (17, 1117352), (19, 999736), (34, 558676), (38, 499868), (68, 279338), (76, 249934), (136, 139669), (152, 124967), (323, 58808), (646, 29404), (1292, 14702), (2584, 7351)]