20910474

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{9929}}^1$

素因数の和:9956

約数の個数: 40

約数和(自身を含む): 50464260

約数和(自身を除く): 29553786

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053, 2106, 9929, 19858, 29787, 59574, 89361, 129077, 178722, 258154, 268083, 387231, 536166, 774462, 804249, 1161693, 1608498, 2323386, 3485079, 6970158, 10455237, 20910474]

約数ペア:

[(1, 20910474), (2, 10455237), (3, 6970158), (6, 3485079), (9, 2323386), (13, 1608498), (18, 1161693), (26, 804249), (27, 774462), (39, 536166), (54, 387231), (78, 268083), (81, 258154), (117, 178722), (162, 129077), (234, 89361), (351, 59574), (702, 29787), (1053, 19858), (2106, 9929)]