20962552

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{571}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 42522480

約数和(自身を除く): 21559928

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 353, 571, 706, 1142, 1412, 2284, 2824, 4568, 4589, 7423, 9178, 14846, 18356, 29692, 36712, 59384, 201563, 403126, 806252, 1612504, 2620319, 5240638, 10481276, 20962552]

約数ペア:

[(1, 20962552), (2, 10481276), (4, 5240638), (8, 2620319), (13, 1612504), (26, 806252), (52, 403126), (104, 201563), (353, 59384), (571, 36712), (706, 29692), (1142, 18356), (1412, 14846), (2284, 9178), (2824, 7423), (4568, 4589)]