19420353

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1481}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 29592576

約数和(自身を除く): 10172223

約数列:

[1, 3, 9, 31, 47, 93, 141, 279, 423, 1457, 1481, 4371, 4443, 13113, 13329, 45911, 69607, 137733, 208821, 413199, 626463, 2157817, 6473451, 19420353]

約数ペア:

[(1, 19420353), (3, 6473451), (9, 2157817), (31, 626463), (47, 413199), (93, 208821), (141, 137733), (279, 69607), (423, 45911), (1457, 13329), (1481, 13113), (4371, 4443)]