21525972

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3209}}^1$

素因数の和:3272

約数の個数: 48

約数和(自身を含む): 55366080

約数和(自身を除く): 33840108

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 258, 516, 559, 1118, 1677, 2236, 3209, 3354, 6418, 6708, 9627, 12836, 19254, 38508, 41717, 83434, 125151, 137987, 166868, 250302, 275974, 413961, 500604, 551948, 827922, 1655844, 1793831, 3587662, 5381493, 7175324, 10762986, 21525972]

約数ペア:

[(1, 21525972), (2, 10762986), (3, 7175324), (4, 5381493), (6, 3587662), (12, 1793831), (13, 1655844), (26, 827922), (39, 551948), (43, 500604), (52, 413961), (78, 275974), (86, 250302), (129, 166868), (156, 137987), (172, 125151), (258, 83434), (516, 41717), (559, 38508), (1118, 19254), (1677, 12836), (2236, 9627), (3209, 6708), (3354, 6418)]