21010240

素因数分解:

$2^6\times 5^1\times {\mathrm{65657}}^1$

素因数の和:65674

約数の個数: 28

約数和(自身を含む): 50031396

約数和(自身を除く): 29021156

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65657, 131314, 262628, 328285, 525256, 656570, 1050512, 1313140, 2101024, 2626280, 4202048, 5252560, 10505120, 21010240]

約数ペア:

[(1, 21010240), (2, 10505120), (4, 5252560), (5, 4202048), (8, 2626280), (10, 2101024), (16, 1313140), (20, 1050512), (32, 656570), (40, 525256), (64, 328285), (80, 262628), (160, 131314), (320, 65657)]