217773721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1\times {\mathrm{661}}^1$

素因数の和:1224

約数の個数: 16

約数和(自身を含む): 242323776

約数和(自身を除く): 24550055

約数列:

[1, 11, 61, 491, 661, 671, 5401, 7271, 29951, 40321, 324551, 329461, 443531, 3570061, 19797611, 217773721]

約数ペア:

[(1, 217773721), (11, 19797611), (61, 3570061), (491, 443531), (661, 329461), (671, 324551), (5401, 40321), (7271, 29951)]