221307142

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{222643}}^1$

素因数の和:222723

約数の個数: 16

約数和(自身を含む): 384728832

約数和(自身を除く): 163421690

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 222643, 445286, 1558501, 3117002, 15807653, 31615306, 110653571, 221307142]

約数ペア:

[(1, 221307142), (2, 110653571), (7, 31615306), (14, 15807653), (71, 3117002), (142, 1558501), (497, 445286), (994, 222643)]