20797965

素因数分解:

$3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{577}}^1$

素因数の和:683

約数の個数: 40

約数和(自身を含む): 37766520

約数和(自身を除く): 16968555

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 89, 135, 267, 405, 445, 577, 801, 1335, 1731, 2403, 2885, 4005, 5193, 7209, 8655, 12015, 15579, 25965, 36045, 46737, 51353, 77895, 154059, 233685, 256765, 462177, 770295, 1386531, 2310885, 4159593, 6932655, 20797965]

約数ペア:

[(1, 20797965), (3, 6932655), (5, 4159593), (9, 2310885), (15, 1386531), (27, 770295), (45, 462177), (81, 256765), (89, 233685), (135, 154059), (267, 77895), (405, 51353), (445, 46737), (577, 36045), (801, 25965), (1335, 15579), (1731, 12015), (2403, 8655), (2885, 7209), (4005, 5193)]