213819585

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{421}}^1\times {\mathrm{691}}^1$

素因数の和:1134

約数の個数: 48

約数和(自身を含む): 399488832

約数和(自身を除く): 185669247

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 421, 691, 735, 1263, 2073, 2105, 2947, 3455, 4837, 6315, 8841, 10365, 14511, 14735, 20629, 24185, 33859, 44205, 61887, 72555, 101577, 103145, 169295, 290911, 309435, 507885, 872733, 1454555, 2036377, 4363665, 6109131, 10181885, 14254639, 30545655, 42763917, 71273195, 213819585]

約数ペア:

[(1, 213819585), (3, 71273195), (5, 42763917), (7, 30545655), (15, 14254639), (21, 10181885), (35, 6109131), (49, 4363665), (105, 2036377), (147, 1454555), (245, 872733), (421, 507885), (691, 309435), (735, 290911), (1263, 169295), (2073, 103145), (2105, 101577), (2947, 72555), (3455, 61887), (4837, 44205), (6315, 33859), (8841, 24185), (10365, 20629), (14511, 14735)]