21126258

素因数分解:

$2^1\times 3^4\times {\mathrm{130409}}^1$

素因数の和:130423

約数の個数: 20

約数和(自身を含む): 47338830

約数和(自身を除く): 26212572

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 130409, 260818, 391227, 782454, 1173681, 2347362, 3521043, 7042086, 10563129, 21126258]

約数ペア:

[(1, 21126258), (2, 10563129), (3, 7042086), (6, 3521043), (9, 2347362), (18, 1173681), (27, 782454), (54, 391227), (81, 260818), (162, 130409)]