21431764

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{1163}}^1$

素因数の和:1455

約数の個数: 24

約数和(自身を含む): 39892608

約数和(自身を除く): 18460844

約数列:

[1, 2, 4, 17, 34, 68, 271, 542, 1084, 1163, 2326, 4607, 4652, 9214, 18428, 19771, 39542, 79084, 315173, 630346, 1260692, 5357941, 10715882, 21431764]

約数ペア:

[(1, 21431764), (2, 10715882), (4, 5357941), (17, 1260692), (34, 630346), (68, 315173), (271, 79084), (542, 39542), (1084, 19771), (1163, 18428), (2326, 9214), (4607, 4652)]