20997264

素因数分解:

$2^4\times 3^1\times {\mathrm{67}}^1\times {\mathrm{6529}}^1$

素因数の和:6607

約数の個数: 40

約数和(自身を含む): 55060960

約数和(自身を除く): 34063696

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 67, 134, 201, 268, 402, 536, 804, 1072, 1608, 3216, 6529, 13058, 19587, 26116, 39174, 52232, 78348, 104464, 156696, 313392, 437443, 874886, 1312329, 1749772, 2624658, 3499544, 5249316, 6999088, 10498632, 20997264]

約数ペア:

[(1, 20997264), (2, 10498632), (3, 6999088), (4, 5249316), (6, 3499544), (8, 2624658), (12, 1749772), (16, 1312329), (24, 874886), (48, 437443), (67, 313392), (134, 156696), (201, 104464), (268, 78348), (402, 52232), (536, 39174), (804, 26116), (1072, 19587), (1608, 13058), (3216, 6529)]