21010212

素因数分解:

$2^2\times 3^3\times {\mathrm{227}}^1\times {\mathrm{857}}^1$

素因数の和:1097

約数の個数: 48

約数和(自身を含む): 54774720

約数和(自身を除く): 33764508

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 227, 454, 681, 857, 908, 1362, 1714, 2043, 2571, 2724, 3428, 4086, 5142, 6129, 7713, 8172, 10284, 12258, 15426, 23139, 24516, 30852, 46278, 92556, 194539, 389078, 583617, 778156, 1167234, 1750851, 2334468, 3501702, 5252553, 7003404, 10505106, 21010212]

約数ペア:

[(1, 21010212), (2, 10505106), (3, 7003404), (4, 5252553), (6, 3501702), (9, 2334468), (12, 1750851), (18, 1167234), (27, 778156), (36, 583617), (54, 389078), (108, 194539), (227, 92556), (454, 46278), (681, 30852), (857, 24516), (908, 23139), (1362, 15426), (1714, 12258), (2043, 10284), (2571, 8172), (2724, 7713), (3428, 6129), (4086, 5142)]