21878512

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{8389}}^1$

素因数の和:8560

約数の個数: 20

約数和(自身を含む): 42654760

約数和(自身を除く): 20776248

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 8389, 16778, 33556, 67112, 134224, 1367407, 2734814, 5469628, 10939256, 21878512]

約数ペア:

[(1, 21878512), (2, 10939256), (4, 5469628), (8, 2734814), (16, 1367407), (163, 134224), (326, 67112), (652, 33556), (1304, 16778), (2608, 8389)]