21786674

素因数分解:

$2^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{349}}^1$

素因数の和:392

約数の個数: 40

約数和(自身を含む): 41174700

約数和(自身を除く): 19388026

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 343, 349, 637, 686, 698, 1274, 2401, 2443, 4459, 4537, 4802, 4886, 8918, 9074, 17101, 31213, 31759, 34202, 62426, 63518, 119707, 222313, 239414, 444626, 837949, 1556191, 1675898, 3112382, 10893337, 21786674]

約数ペア:

[(1, 21786674), (2, 10893337), (7, 3112382), (13, 1675898), (14, 1556191), (26, 837949), (49, 444626), (91, 239414), (98, 222313), (182, 119707), (343, 63518), (349, 62426), (637, 34202), (686, 31759), (698, 31213), (1274, 17101), (2401, 9074), (2443, 8918), (4459, 4886), (4537, 4802)]