21831160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41983}}^1$

素因数の和:42007

約数の個数: 32

約数和(自身を含む): 52899840

約数和(自身を除く): 31068680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41983, 83966, 167932, 209915, 335864, 419830, 545779, 839660, 1091558, 1679320, 2183116, 2728895, 4366232, 5457790, 10915580, 21831160]

約数ペア:

[(1, 21831160), (2, 10915580), (4, 5457790), (5, 4366232), (8, 2728895), (10, 2183116), (13, 1679320), (20, 1091558), (26, 839660), (40, 545779), (52, 419830), (65, 335864), (104, 209915), (130, 167932), (260, 83966), (520, 41983)]