20841672

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 54489600

約数和(自身を除く): 33647928

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 109, 124, 186, 218, 248, 257, 327, 372, 436, 514, 654, 744, 771, 872, 1028, 1308, 1542, 2056, 2616, 3084, 3379, 6168, 6758, 7967, 10137, 13516, 15934, 20274, 23901, 27032, 28013, 31868, 40548, 47802, 56026, 63736, 81096, 84039, 95604, 112052, 168078, 191208, 224104, 336156, 672312, 868403, 1736806, 2605209, 3473612, 5210418, 6947224, 10420836, 20841672]

約数ペア:

[(1, 20841672), (2, 10420836), (3, 6947224), (4, 5210418), (6, 3473612), (8, 2605209), (12, 1736806), (24, 868403), (31, 672312), (62, 336156), (93, 224104), (109, 191208), (124, 168078), (186, 112052), (218, 95604), (248, 84039), (257, 81096), (327, 63736), (372, 56026), (436, 47802), (514, 40548), (654, 31868), (744, 28013), (771, 27032), (872, 23901), (1028, 20274), (1308, 15934), (1542, 13516), (2056, 10137), (2616, 7967), (3084, 6758), (3379, 6168)]