21319690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2017}}^1$

素因数の和:2182

約数の個数: 32

約数和(自身を含む): 44169984

約数和(自身を除く): 22850294

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 151, 302, 755, 1057, 1510, 2017, 2114, 4034, 5285, 10085, 10570, 14119, 20170, 28238, 70595, 141190, 304567, 609134, 1522835, 2131969, 3045670, 4263938, 10659845, 21319690]

約数ペア:

[(1, 21319690), (2, 10659845), (5, 4263938), (7, 3045670), (10, 2131969), (14, 1522835), (35, 609134), (70, 304567), (151, 141190), (302, 70595), (755, 28238), (1057, 20170), (1510, 14119), (2017, 10570), (2114, 10085), (4034, 5285)]