21714680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41759}}^1$

素因数の和:41783

約数の個数: 32

約数和(自身を含む): 52617600

約数和(自身を除く): 30902920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41759, 83518, 167036, 208795, 334072, 417590, 542867, 835180, 1085734, 1670360, 2171468, 2714335, 4342936, 5428670, 10857340, 21714680]

約数ペア:

[(1, 21714680), (2, 10857340), (4, 5428670), (5, 4342936), (8, 2714335), (10, 2171468), (13, 1670360), (20, 1085734), (26, 835180), (40, 542867), (52, 417590), (65, 334072), (104, 208795), (130, 167036), (260, 83518), (520, 41759)]