21198216

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67943}}^1$

素因数の和:67965

約数の個数: 32

約数和(自身を含む): 57072960

約数和(自身を除く): 35874744

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67943, 135886, 203829, 271772, 407658, 543544, 815316, 883259, 1630632, 1766518, 2649777, 3533036, 5299554, 7066072, 10599108, 21198216]

約数ペア:

[(1, 21198216), (2, 10599108), (3, 7066072), (4, 5299554), (6, 3533036), (8, 2649777), (12, 1766518), (13, 1630632), (24, 883259), (26, 815316), (39, 543544), (52, 407658), (78, 271772), (104, 203829), (156, 135886), (312, 67943)]