21000751125

素因数分解:

$3^1\times 5^3\times {\mathrm{173}}^1\times {\mathrm{323711}}^1$

素因数の和:323902

約数の個数: 32

約数和(自身を含む): 35147354112

約数和(自身を除く): 14146602987

約数列:

[1, 3, 5, 15, 25, 75, 125, 173, 375, 519, 865, 2595, 4325, 12975, 21625, 64875, 323711, 971133, 1618555, 4855665, 8092775, 24278325, 40463875, 56002003, 121391625, 168006009, 280010015, 840030045, 1400050075, 4200150225, 7000250375, 21000751125]

約数ペア:

[(1, 21000751125), (3, 7000250375), (5, 4200150225), (15, 1400050075), (25, 840030045), (75, 280010015), (125, 168006009), (173, 121391625), (375, 56002003), (519, 40463875), (865, 24278325), (2595, 8092775), (4325, 4855665), (12975, 1618555), (21625, 971133), (64875, 323711)]