20629455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 42052608

約数和(自身を除く): 21423153

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 53, 55, 77, 105, 159, 165, 231, 265, 337, 371, 385, 583, 795, 1011, 1113, 1155, 1685, 1749, 1855, 2359, 2915, 3707, 4081, 5055, 5565, 7077, 8745, 11121, 11795, 12243, 17861, 18535, 20405, 25949, 35385, 53583, 55605, 61215, 77847, 89305, 125027, 129745, 196471, 267915, 375081, 389235, 589413, 625135, 982355, 1375297, 1875405, 2947065, 4125891, 6876485, 20629455]

約数ペア:

[(1, 20629455), (3, 6876485), (5, 4125891), (7, 2947065), (11, 1875405), (15, 1375297), (21, 982355), (33, 625135), (35, 589413), (53, 389235), (55, 375081), (77, 267915), (105, 196471), (159, 129745), (165, 125027), (231, 89305), (265, 77847), (337, 61215), (371, 55605), (385, 53583), (583, 35385), (795, 25949), (1011, 20405), (1113, 18535), (1155, 17861), (1685, 12243), (1749, 11795), (1855, 11121), (2359, 8745), (2915, 7077), (3707, 5565), (4081, 5055)]