217895425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{811}}^1\times {\mathrm{977}}^1$

素因数の和:1809

約数の個数: 24

約数和(自身を含む): 295418592

約数和(自身を除く): 77523167

約数列:

[1, 5, 11, 25, 55, 275, 811, 977, 4055, 4885, 8921, 10747, 20275, 24425, 44605, 53735, 223025, 268675, 792347, 3961735, 8715817, 19808675, 43579085, 217895425]

約数ペア:

[(1, 217895425), (5, 43579085), (11, 19808675), (25, 8715817), (55, 3961735), (275, 792347), (811, 268675), (977, 223025), (4055, 53735), (4885, 44605), (8921, 24425), (10747, 20275)]