19663856

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{42379}}^1$

素因数の和:42416

約数の個数: 20

約数和(自身を含む): 39413400

約数和(自身を除く): 19749544

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 42379, 84758, 169516, 339032, 678064, 1228991, 2457982, 4915964, 9831928, 19663856]

約数ペア:

[(1, 19663856), (2, 9831928), (4, 4915964), (8, 2457982), (16, 1228991), (29, 678064), (58, 339032), (116, 169516), (232, 84758), (464, 42379)]