249968649

素因数分解:

$3^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{10831}}^1$

素因数の和:11005

約数の個数: 24

約数和(自身を含む): 390211968

約数和(自身を除く): 140243319

約数列:

[1, 3, 7, 21, 49, 147, 157, 471, 1099, 3297, 7693, 10831, 23079, 32493, 75817, 227451, 530719, 1592157, 1700467, 5101401, 11903269, 35709807, 83322883, 249968649]

約数ペア:

[(1, 249968649), (3, 83322883), (7, 35709807), (21, 11903269), (49, 5101401), (147, 1700467), (157, 1592157), (471, 530719), (1099, 227451), (3297, 75817), (7693, 32493), (10831, 23079)]