21905988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{140423}}^1$

素因数の和:140443

約数の個数: 24

約数和(自身を含む): 55046208

約数和(自身を除く): 33140220

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 140423, 280846, 421269, 561692, 842538, 1685076, 1825499, 3650998, 5476497, 7301996, 10952994, 21905988]

約数ペア:

[(1, 21905988), (2, 10952994), (3, 7301996), (4, 5476497), (6, 3650998), (12, 1825499), (13, 1685076), (26, 842538), (39, 561692), (52, 421269), (78, 280846), (156, 140423)]