21053373

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{653}}^1\times {\mathrm{977}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 30701376

約数和(自身を除く): 9648003

約数列:

[1, 3, 11, 33, 653, 977, 1959, 2931, 7183, 10747, 21549, 32241, 637981, 1913943, 7017791, 21053373]

約数ペア:

[(1, 21053373), (3, 7017791), (11, 1913943), (33, 637981), (653, 32241), (977, 21549), (1959, 10747), (2931, 7183)]