20291355

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1741}}^1$

素因数の和:1796

約数の個数: 48

約数和(自身を含む): 41306304

約数和(自身を除く): 21014949

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 63, 105, 111, 185, 259, 315, 333, 555, 777, 1295, 1665, 1741, 2331, 3885, 5223, 8705, 11655, 12187, 15669, 26115, 36561, 60935, 64417, 78345, 109683, 182805, 193251, 322085, 450919, 548415, 579753, 966255, 1352757, 2254595, 2898765, 4058271, 6763785, 20291355]

約数ペア:

[(1, 20291355), (3, 6763785), (5, 4058271), (7, 2898765), (9, 2254595), (15, 1352757), (21, 966255), (35, 579753), (37, 548415), (45, 450919), (63, 322085), (105, 193251), (111, 182805), (185, 109683), (259, 78345), (315, 64417), (333, 60935), (555, 36561), (777, 26115), (1295, 15669), (1665, 12187), (1741, 11655), (2331, 8705), (3885, 5223)]