19979089

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1721}}^1$

素因数の和:1800

約数の個数: 16

約数和(自身を含む): 23143680

約数和(自身を除く): 3164591

約数列:

[1, 13, 19, 47, 247, 611, 893, 1721, 11609, 22373, 32699, 80887, 425087, 1051531, 1536853, 19979089]

約数ペア:

[(1, 19979089), (13, 1536853), (19, 1051531), (47, 425087), (247, 80887), (611, 32699), (893, 22373), (1721, 11609)]