21665388

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{26947}}^1$

素因数の和:27021

約数の個数: 24

約数和(自身を含む): 51308992

約数和(自身を除く): 29643604

約数列:

[1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804, 26947, 53894, 80841, 107788, 161682, 323364, 1805449, 3610898, 5416347, 7221796, 10832694, 21665388]

約数ペア:

[(1, 21665388), (2, 10832694), (3, 7221796), (4, 5416347), (6, 3610898), (12, 1805449), (67, 323364), (134, 161682), (201, 107788), (268, 80841), (402, 53894), (804, 26947)]