399921372

素因数分解:

$2^2\times 3^2\times {\mathrm{421}}^1\times {\mathrm{26387}}^1$

素因数の和:26818

約数の個数: 36

約数和(自身を含む): 1013351976

約数和(自身を除く): 613430604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 421, 842, 1263, 1684, 2526, 3789, 5052, 7578, 15156, 26387, 52774, 79161, 105548, 158322, 237483, 316644, 474966, 949932, 11108927, 22217854, 33326781, 44435708, 66653562, 99980343, 133307124, 199960686, 399921372]

約数ペア:

[(1, 399921372), (2, 199960686), (3, 133307124), (4, 99980343), (6, 66653562), (9, 44435708), (12, 33326781), (18, 22217854), (36, 11108927), (421, 949932), (842, 474966), (1263, 316644), (1684, 237483), (2526, 158322), (3789, 105548), (5052, 79161), (7578, 52774), (15156, 26387)]