20931505

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{277}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 30744576

約数和(自身を除く): 9813071

約数列:

[1, 5, 7, 17, 35, 85, 119, 127, 277, 595, 635, 889, 1385, 1939, 2159, 4445, 4709, 9695, 10795, 15113, 23545, 32963, 35179, 75565, 164815, 175895, 246253, 598043, 1231265, 2990215, 4186301, 20931505]

約数ペア:

[(1, 20931505), (5, 4186301), (7, 2990215), (17, 1231265), (35, 598043), (85, 246253), (119, 175895), (127, 164815), (277, 75565), (595, 35179), (635, 32963), (889, 23545), (1385, 15113), (1939, 10795), (2159, 9695), (4445, 4709)]