21676875

素因数分解:

$3^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{1051}}^1$

素因数の和:1085

約数の個数: 40

約数和(自身を含む): 39437376

約数和(自身を除く): 17760501

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 125, 165, 275, 375, 625, 825, 1051, 1375, 1875, 3153, 4125, 5255, 6875, 11561, 15765, 20625, 26275, 34683, 57805, 78825, 131375, 173415, 289025, 394125, 656875, 867075, 1445125, 1970625, 4335375, 7225625, 21676875]

約数ペア:

[(1, 21676875), (3, 7225625), (5, 4335375), (11, 1970625), (15, 1445125), (25, 867075), (33, 656875), (55, 394125), (75, 289025), (125, 173415), (165, 131375), (275, 78825), (375, 57805), (625, 34683), (825, 26275), (1051, 20625), (1375, 15765), (1875, 11561), (3153, 6875), (4125, 5255)]