21000905719910

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21143}}^1\times {\mathrm{3204127}}^1$

素因数の和:3225308

約数の個数: 32

約数和(自身を含む): 39022895480832

約数和(自身を除く): 18021989760922

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 21143, 42286, 105715, 211430, 655433, 1310866, 3204127, 3277165, 6408254, 6554330, 16020635, 32041270, 99327937, 198655874, 496639685, 993279370, 67744857161, 135489714322, 338724285805, 677448571610, 2100090571991, 4200181143982, 10500452859955, 21000905719910]

約数ペア:

[(1, 21000905719910), (2, 10500452859955), (5, 4200181143982), (10, 2100090571991), (31, 677448571610), (62, 338724285805), (155, 135489714322), (310, 67744857161), (21143, 993279370), (42286, 496639685), (105715, 198655874), (211430, 99327937), (655433, 32041270), (1310866, 16020635), (3204127, 6554330), (3277165, 6408254)]