21387292

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{857}}^1$

素因数の和:1245

約数の個数: 24

約数和(自身を含む): 39783744

約数和(自身を除く): 18396452

約数列:

[1, 2, 4, 17, 34, 68, 367, 734, 857, 1468, 1714, 3428, 6239, 12478, 14569, 24956, 29138, 58276, 314519, 629038, 1258076, 5346823, 10693646, 21387292]

約数ペア:

[(1, 21387292), (2, 10693646), (4, 5346823), (17, 1258076), (34, 629038), (68, 314519), (367, 58276), (734, 29138), (857, 24956), (1468, 14569), (1714, 12478), (3428, 6239)]