221569587

素因数分解:

$3^5\times {\mathrm{557}}^1\times {\mathrm{1637}}^1$

素因数の和:2209

約数の個数: 24

約数和(自身を含む): 332697456

約数和(自身を除く): 111127869

約数列:

[1, 3, 9, 27, 81, 243, 557, 1637, 1671, 4911, 5013, 14733, 15039, 44199, 45117, 132597, 135351, 397791, 911809, 2735427, 8206281, 24618843, 73856529, 221569587]

約数ペア:

[(1, 221569587), (3, 73856529), (9, 24618843), (27, 8206281), (81, 2735427), (243, 911809), (557, 397791), (1637, 135351), (1671, 132597), (4911, 45117), (5013, 44199), (14733, 15039)]