21053272

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{20089}}^1$

素因数の和:20226

約数の個数: 16

約数和(自身を含む): 39778200

約数和(自身を除く): 18724928

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 20089, 40178, 80356, 160712, 2631659, 5263318, 10526636, 21053272]

約数ペア:

[(1, 21053272), (2, 10526636), (4, 5263318), (8, 2631659), (131, 160712), (262, 80356), (524, 40178), (1048, 20089)]