18818421

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1\times {\mathrm{359}}^1$

素因数の和:636

約数の個数: 16

約数和(自身を含む): 25557120

約数和(自身を除く): 6738699

約数列:

[1, 3, 101, 173, 303, 359, 519, 1077, 17473, 36259, 52419, 62107, 108777, 186321, 6272807, 18818421]

約数ペア:

[(1, 18818421), (3, 6272807), (101, 186321), (173, 108777), (303, 62107), (359, 52419), (519, 36259), (1077, 17473)]