19784115

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11273}}^1$

素因数の和:11300

約数の個数: 32

約数和(自身を含む): 37880640

約数和(自身を除く): 18096525

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11273, 33819, 56365, 101457, 146549, 169095, 304371, 439647, 507285, 732745, 1318941, 1521855, 2198235, 3956823, 6594705, 19784115]

約数ペア:

[(1, 19784115), (3, 6594705), (5, 3956823), (9, 2198235), (13, 1521855), (15, 1318941), (27, 732745), (39, 507285), (45, 439647), (65, 304371), (117, 169095), (135, 146549), (195, 101457), (351, 56365), (585, 33819), (1755, 11273)]