2155183408

素因数分解:

$2^4\times 7^1\times {\mathrm{19242709}}^1$

素因数の和:19242724

約数の個数: 20

約数和(自身を含む): 4772192080

約数和(自身を除く): 2617008672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 19242709, 38485418, 76970836, 134698963, 153941672, 269397926, 307883344, 538795852, 1077591704, 2155183408]

約数ペア:

[(1, 2155183408), (2, 1077591704), (4, 538795852), (7, 307883344), (8, 269397926), (14, 153941672), (16, 134698963), (28, 76970836), (56, 38485418), (112, 19242709)]