21291501

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1511}}^1$

素因数の和:1593

約数の個数: 32

約数和(自身を含む): 35997696

約数和(自身を除く): 14706195

約数列:

[1, 3, 7, 11, 21, 33, 61, 77, 183, 231, 427, 671, 1281, 1511, 2013, 4533, 4697, 10577, 14091, 16621, 31731, 49863, 92171, 116347, 276513, 349041, 645197, 1013881, 1935591, 3041643, 7097167, 21291501]

約数ペア:

[(1, 21291501), (3, 7097167), (7, 3041643), (11, 1935591), (21, 1013881), (33, 645197), (61, 349041), (77, 276513), (183, 116347), (231, 92171), (427, 49863), (671, 31731), (1281, 16621), (1511, 14091), (2013, 10577), (4533, 4697)]