20945296

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68899}}^1$

素因数の和:68926

約数の個数: 20

約数和(自身を含む): 42718000

約数和(自身を除く): 21772704

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68899, 137798, 275596, 551192, 1102384, 1309081, 2618162, 5236324, 10472648, 20945296]

約数ペア:

[(1, 20945296), (2, 10472648), (4, 5236324), (8, 2618162), (16, 1309081), (19, 1102384), (38, 551192), (76, 275596), (152, 137798), (304, 68899)]