20689695

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11789}}^1$

素因数の和:11816

約数の個数: 32

約数和(自身を含む): 39614400

約数和(自身を除く): 18924705

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11789, 35367, 58945, 106101, 153257, 176835, 318303, 459771, 530505, 766285, 1379313, 1591515, 2298855, 4137939, 6896565, 20689695]

約数ペア:

[(1, 20689695), (3, 6896565), (5, 4137939), (9, 2298855), (13, 1591515), (15, 1379313), (27, 766285), (39, 530505), (45, 459771), (65, 318303), (117, 176835), (135, 153257), (195, 106101), (351, 58945), (585, 35367), (1755, 11789)]