19967865

素因数分解:

$3^1\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1511}}^1$

素因数の和:2400

約数の個数: 16

約数和(自身を含む): 32006016

約数和(自身を除く): 12038151

約数列:

[1, 3, 5, 15, 881, 1511, 2643, 4405, 4533, 7555, 13215, 22665, 1331191, 3993573, 6655955, 19967865]

約数ペア:

[(1, 19967865), (3, 6655955), (5, 3993573), (15, 1331191), (881, 22665), (1511, 13215), (2643, 7555), (4405, 4533)]