21384356

素因数分解:

$2^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{2081}}^1$

素因数の和:2459

約数の個数: 24

約数和(自身を含む): 42905856

約数和(自身を除く): 21521500

約数列:

[1, 2, 4, 7, 14, 28, 367, 734, 1468, 2081, 2569, 4162, 5138, 8324, 10276, 14567, 29134, 58268, 763727, 1527454, 3054908, 5346089, 10692178, 21384356]

約数ペア:

[(1, 21384356), (2, 10692178), (4, 5346089), (7, 3054908), (14, 1527454), (28, 763727), (367, 58268), (734, 29134), (1468, 14567), (2081, 10276), (2569, 8324), (4162, 5138)]