21729121354

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1019}}^1\times {\mathrm{1997}}^1$

素因数の和:3318

約数の個数: 32

約数和(自身を含む): 34482283200

約数和(自身を除く): 12753161846

約数列:

[1, 2, 19, 38, 281, 562, 1019, 1997, 2038, 3994, 5339, 10678, 19361, 37943, 38722, 75886, 286339, 561157, 572678, 1122314, 2034943, 4069886, 5440441, 10661983, 10880882, 21323966, 38663917, 77327834, 571818983, 1143637966, 10864560677, 21729121354]

約数ペア:

[(1, 21729121354), (2, 10864560677), (19, 1143637966), (38, 571818983), (281, 77327834), (562, 38663917), (1019, 21323966), (1997, 10880882), (2038, 10661983), (3994, 5440441), (5339, 4069886), (10678, 2034943), (19361, 1122314), (37943, 572678), (38722, 561157), (75886, 286339)]