19861443

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1523}}^1$

素因数の和:1565

約数の個数: 40

約数和(自身を含む): 35405568

約数和(自身を除く): 15544125

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1523, 1863, 4347, 4569, 10661, 13041, 13707, 31983, 35029, 41121, 95949, 105087, 123363, 245203, 287847, 315261, 735609, 863541, 945783, 2206827, 2837349, 6620481, 19861443]

約数ペア:

[(1, 19861443), (3, 6620481), (7, 2837349), (9, 2206827), (21, 945783), (23, 863541), (27, 735609), (63, 315261), (69, 287847), (81, 245203), (161, 123363), (189, 105087), (207, 95949), (483, 41121), (567, 35029), (621, 31983), (1449, 13707), (1523, 13041), (1863, 10661), (4347, 4569)]