215213761

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{34123}}^1$

素因数の和:34200

約数の個数: 16

約数和(自身を含む): 265348224

約数和(自身を除く): 50134463

約数列:

[1, 7, 17, 53, 119, 371, 901, 6307, 34123, 238861, 580091, 1808519, 4060637, 12659633, 30744823, 215213761]

約数ペア:

[(1, 215213761), (7, 30744823), (17, 12659633), (53, 4060637), (119, 1808519), (371, 580091), (901, 238861), (6307, 34123)]