21032560

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{929}}^1$

素因数の和:1225

約数の個数: 40

約数和(自身を含む): 49126320

約数和(自身を除く): 28093760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 929, 1132, 1415, 1858, 2264, 2830, 3716, 4528, 4645, 5660, 7432, 9290, 11320, 14864, 18580, 22640, 37160, 74320, 262907, 525814, 1051628, 1314535, 2103256, 2629070, 4206512, 5258140, 10516280, 21032560]

約数ペア:

[(1, 21032560), (2, 10516280), (4, 5258140), (5, 4206512), (8, 2629070), (10, 2103256), (16, 1314535), (20, 1051628), (40, 525814), (80, 262907), (283, 74320), (566, 37160), (929, 22640), (1132, 18580), (1415, 14864), (1858, 11320), (2264, 9290), (2830, 7432), (3716, 5660), (4528, 4645)]