21195564

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7151}}^1$

素因数の和:7190

約数の個数: 48

約数和(自身を含む): 56071680

約数和(自身を除く): 34876116

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 7151, 14302, 21453, 28604, 42906, 85812, 92963, 135869, 185926, 271738, 278889, 371852, 407607, 543476, 557778, 815214, 1115556, 1630428, 1766297, 3532594, 5298891, 7065188, 10597782, 21195564]

約数ペア:

[(1, 21195564), (2, 10597782), (3, 7065188), (4, 5298891), (6, 3532594), (12, 1766297), (13, 1630428), (19, 1115556), (26, 815214), (38, 557778), (39, 543476), (52, 407607), (57, 371852), (76, 278889), (78, 271738), (114, 185926), (156, 135869), (228, 92963), (247, 85812), (494, 42906), (741, 28604), (988, 21453), (1482, 14302), (2964, 7151)]