21370908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136993}}^1$

素因数の和:137013

約数の個数: 24

約数和(自身を含む): 53701648

約数和(自身を除く): 32330740

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136993, 273986, 410979, 547972, 821958, 1643916, 1780909, 3561818, 5342727, 7123636, 10685454, 21370908]

約数ペア:

[(1, 21370908), (2, 10685454), (3, 7123636), (4, 5342727), (6, 3561818), (12, 1780909), (13, 1643916), (26, 821958), (39, 547972), (52, 410979), (78, 273986), (156, 136993)]