20924025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16411}}^1$

素因数の和:16441

約数の個数: 24

約数和(自身を含む): 36631584

約数和(自身を除く): 15707559

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16411, 49233, 82055, 246165, 278987, 410275, 836961, 1230825, 1394935, 4184805, 6974675, 20924025]

約数ペア:

[(1, 20924025), (3, 6974675), (5, 4184805), (15, 1394935), (17, 1230825), (25, 836961), (51, 410275), (75, 278987), (85, 246165), (255, 82055), (425, 49233), (1275, 16411)]