20193555

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43427}}^1$

素因数の和:43466

約数の個数: 16

約数和(自身を含む): 33352704

約数和(自身を除く): 13159149

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 43427, 130281, 217135, 651405, 1346237, 4038711, 6731185, 20193555]

約数ペア:

[(1, 20193555), (3, 6731185), (5, 4038711), (15, 1346237), (31, 651405), (93, 217135), (155, 130281), (465, 43427)]