21963375

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{2789}}^1$

素因数の和:2817

約数の個数: 48

約数和(自身を含む): 45264960

約数和(自身を除く): 23301585

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 2625, 2789, 7875, 8367, 13945, 19523, 25101, 41835, 58569, 69725, 97615, 125505, 175707, 209175, 292845, 348625, 488075, 627525, 878535, 1045875, 1464225, 2440375, 3137625, 4392675, 7321125, 21963375]

約数ペア:

[(1, 21963375), (3, 7321125), (5, 4392675), (7, 3137625), (9, 2440375), (15, 1464225), (21, 1045875), (25, 878535), (35, 627525), (45, 488075), (63, 348625), (75, 292845), (105, 209175), (125, 175707), (175, 125505), (225, 97615), (315, 69725), (375, 58569), (525, 41835), (875, 25101), (1125, 19523), (1575, 13945), (2625, 8367), (2789, 7875)]