19818808

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 38160000

約数和(自身を除く): 18341192

約数列:

[1, 2, 4, 8, 59, 118, 199, 211, 236, 398, 422, 472, 796, 844, 1592, 1688, 11741, 12449, 23482, 24898, 41989, 46964, 49796, 83978, 93928, 99592, 167956, 335912, 2477351, 4954702, 9909404, 19818808]

約数ペア:

[(1, 19818808), (2, 9909404), (4, 4954702), (8, 2477351), (59, 335912), (118, 167956), (199, 99592), (211, 93928), (236, 83978), (398, 49796), (422, 46964), (472, 41989), (796, 24898), (844, 23482), (1592, 12449), (1688, 11741)]