20697585

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3529}}^1$

素因数の和:3577

約数の個数: 32

約数和(自身を含む): 36599040

約数和(自身を除く): 15901455

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3529, 5865, 10587, 17645, 52935, 59993, 81167, 179979, 243501, 299965, 405835, 899895, 1217505, 1379839, 4139517, 6899195, 20697585]

約数ペア:

[(1, 20697585), (3, 6899195), (5, 4139517), (15, 1379839), (17, 1217505), (23, 899895), (51, 405835), (69, 299965), (85, 243501), (115, 179979), (255, 81167), (345, 59993), (391, 52935), (1173, 17645), (1955, 10587), (3529, 5865)]