164920581

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 282172800

約数和(自身を除く): 117252219

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 139, 259, 333, 417, 509, 777, 973, 1251, 1527, 2331, 2919, 3563, 4581, 5143, 8757, 10689, 15429, 18833, 32067, 36001, 46287, 56499, 70751, 108003, 131831, 169497, 212253, 324009, 395493, 495257, 636759, 1186479, 1485771, 2617787, 4457313, 7853361, 18324509, 23560083, 54973527, 164920581]

約数ペア:

[(1, 164920581), (3, 54973527), (7, 23560083), (9, 18324509), (21, 7853361), (37, 4457313), (63, 2617787), (111, 1485771), (139, 1186479), (259, 636759), (333, 495257), (417, 395493), (509, 324009), (777, 212253), (973, 169497), (1251, 131831), (1527, 108003), (2331, 70751), (2919, 56499), (3563, 46287), (4581, 36001), (5143, 32067), (8757, 18833), (10689, 15429)]