21411604

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{727}}^1$

素因数の和:967

約数の個数: 24

約数和(自身を含む): 38729600

約数和(自身を除く): 17317996

約数列:

[1, 2, 4, 37, 74, 148, 199, 398, 727, 796, 1454, 2908, 7363, 14726, 26899, 29452, 53798, 107596, 144673, 289346, 578692, 5352901, 10705802, 21411604]

約数ペア:

[(1, 21411604), (2, 10705802), (4, 5352901), (37, 578692), (74, 289346), (148, 144673), (199, 107596), (398, 53798), (727, 29452), (796, 26899), (1454, 14726), (2908, 7363)]