21860205

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{14149}}^1$

素因数の和:14260

約数の個数: 16

約数和(自身を含む): 35318400

約数和(自身を除く): 13458195

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 14149, 42447, 70745, 212235, 1457347, 4372041, 7286735, 21860205]

約数ペア:

[(1, 21860205), (3, 7286735), (5, 4372041), (15, 1457347), (103, 212235), (309, 70745), (515, 42447), (1545, 14149)]