21987002919

素因数分解:

$3^1\times 7^1\times {\mathrm{2843}}^1\times {\mathrm{368273}}^1$

素因数の和:371126

約数の個数: 16

約数和(自身を含む): 33515880192

約数和(自身を除く): 11528877273

約数列:

[1, 3, 7, 21, 2843, 8529, 19901, 59703, 368273, 1104819, 2577911, 7733733, 1047000139, 3141000417, 7329000973, 21987002919]

約数ペア:

[(1, 21987002919), (3, 7329000973), (7, 3141000417), (21, 1047000139), (2843, 7733733), (8529, 2577911), (19901, 1104819), (59703, 368273)]