21009449085

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1\times {\mathrm{67883}}^1$

素因数の和:68377

約数の個数: 32

約数和(自身を含む): 34409041920

約数和(自身を除く): 13399592835

約数列:

[1, 3, 5, 15, 47, 141, 235, 439, 705, 1317, 2195, 6585, 20633, 61899, 67883, 103165, 203649, 309495, 339415, 1018245, 3190501, 9571503, 15952505, 29800637, 47857515, 89401911, 149003185, 447009555, 1400629939, 4201889817, 7003149695, 21009449085]

約数ペア:

[(1, 21009449085), (3, 7003149695), (5, 4201889817), (15, 1400629939), (47, 447009555), (141, 149003185), (235, 89401911), (439, 47857515), (705, 29800637), (1317, 15952505), (2195, 9571503), (6585, 3190501), (20633, 1018245), (61899, 339415), (67883, 309495), (103165, 203649)]