21340375

素因数分解:

$5^3\times 7^1\times {\mathrm{29}}^3$

素因数の和:109

約数の個数: 32

約数和(自身を含む): 31524480

約数和(自身を除く): 10184105

約数列:

[1, 5, 7, 25, 29, 35, 125, 145, 175, 203, 725, 841, 875, 1015, 3625, 4205, 5075, 5887, 21025, 24389, 25375, 29435, 105125, 121945, 147175, 170723, 609725, 735875, 853615, 3048625, 4268075, 21340375]

約数ペア:

[(1, 21340375), (5, 4268075), (7, 3048625), (25, 853615), (29, 735875), (35, 609725), (125, 170723), (145, 147175), (175, 121945), (203, 105125), (725, 29435), (841, 25375), (875, 24389), (1015, 21025), (3625, 5887), (4205, 5075)]