20783492

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:468

約数の個数: 36

約数和(自身を含む): 39524940

約数和(自身を除く): 18741448

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 361, 389, 703, 722, 778, 1406, 1444, 1556, 2812, 7391, 13357, 14393, 14782, 26714, 28786, 29564, 53428, 57572, 140429, 273467, 280858, 546934, 561716, 1093868, 5195873, 10391746, 20783492]

約数ペア:

[(1, 20783492), (2, 10391746), (4, 5195873), (19, 1093868), (37, 561716), (38, 546934), (74, 280858), (76, 273467), (148, 140429), (361, 57572), (389, 53428), (703, 29564), (722, 28786), (778, 26714), (1406, 14782), (1444, 14393), (1556, 13357), (2812, 7391)]