2154195

素因数分解:

$3^7\times 5^1\times {\mathrm{197}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 3896640

約数和(自身を除く): 1742445

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 197, 243, 405, 591, 729, 985, 1215, 1773, 2187, 2955, 3645, 5319, 8865, 10935, 15957, 26595, 47871, 79785, 143613, 239355, 430839, 718065, 2154195]

約数ペア:

[(1, 2154195), (3, 718065), (5, 430839), (9, 239355), (15, 143613), (27, 79785), (45, 47871), (81, 26595), (135, 15957), (197, 10935), (243, 8865), (405, 5319), (591, 3645), (729, 2955), (985, 2187), (1215, 1773)]