21933505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 8709695

約数列:

[1, 5, 11, 19, 55, 95, 139, 151, 209, 695, 755, 1045, 1529, 1661, 2641, 2869, 7645, 8305, 13205, 14345, 20989, 29051, 31559, 104945, 145255, 157795, 230879, 398791, 1154395, 1993955, 4386701, 21933505]

約数ペア:

[(1, 21933505), (5, 4386701), (11, 1993955), (19, 1154395), (55, 398791), (95, 230879), (139, 157795), (151, 145255), (209, 104945), (695, 31559), (755, 29051), (1045, 20989), (1529, 14345), (1661, 13205), (2641, 8305), (2869, 7645)]