20921641

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1193}}^1$

素因数の和:1296

約数の個数: 16

約数和(自身を含む): 24071040

約数和(自身を除く): 3149399

約数列:

[1, 13, 19, 71, 247, 923, 1193, 1349, 15509, 17537, 22667, 84703, 294671, 1101139, 1609357, 20921641]

約数ペア:

[(1, 20921641), (13, 1609357), (19, 1101139), (71, 294671), (247, 84703), (923, 22667), (1193, 17537), (1349, 15509)]