19984454

素因数分解:

$2^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{3343}}^1$

素因数の和:3420

約数の個数: 24

約数和(自身を含む): 35453088

約数和(自身を除く): 15468634

約数列:

[1, 2, 7, 14, 49, 61, 98, 122, 427, 854, 2989, 3343, 5978, 6686, 23401, 46802, 163807, 203923, 327614, 407846, 1427461, 2854922, 9992227, 19984454]

約数ペア:

[(1, 19984454), (2, 9992227), (7, 2854922), (14, 1427461), (49, 407846), (61, 327614), (98, 203923), (122, 163807), (427, 46802), (854, 23401), (2989, 6686), (3343, 5978)]