21787116

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139661}}^1$

素因数の和:139681

約数の個数: 24

約数和(自身を含む): 54747504

約数和(自身を除く): 32960388

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 139661, 279322, 418983, 558644, 837966, 1675932, 1815593, 3631186, 5446779, 7262372, 10893558, 21787116]

約数ペア:

[(1, 21787116), (2, 10893558), (3, 7262372), (4, 5446779), (6, 3631186), (12, 1815593), (13, 1675932), (26, 837966), (39, 558644), (52, 418983), (78, 279322), (156, 139661)]