18930813

素因数分解:

$3^1\times {\mathrm{11}}^4\times {\mathrm{431}}^1$

素因数の和:478

約数の個数: 20

約数和(自身を含む): 27829440

約数和(自身を除く): 8898627

約数列:

[1, 3, 11, 33, 121, 363, 431, 1293, 1331, 3993, 4741, 14223, 14641, 43923, 52151, 156453, 573661, 1720983, 6310271, 18930813]

約数ペア:

[(1, 18930813), (3, 6310271), (11, 1720983), (33, 573661), (121, 156453), (363, 52151), (431, 43923), (1293, 14641), (1331, 14223), (3993, 4741)]