21310965

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12143}}^1$

素因数の和:12170

約数の個数: 32

約数和(自身を含む): 40803840

約数和(自身を除く): 19492875

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 12143, 36429, 60715, 109287, 157859, 182145, 327861, 473577, 546435, 789295, 1420731, 1639305, 2367885, 4262193, 7103655, 21310965]

約数ペア:

[(1, 21310965), (3, 7103655), (5, 4262193), (9, 2367885), (13, 1639305), (15, 1420731), (27, 789295), (39, 546435), (45, 473577), (65, 327861), (117, 182145), (135, 157859), (195, 109287), (351, 60715), (585, 36429), (1755, 12143)]