19657215

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5021}}^1$

素因数の和:5064

約数の個数: 32

約数和(自身を含む): 36158400

約数和(自身を除く): 16501185

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 5021, 15063, 25105, 45189, 75315, 135567, 145609, 225945, 436827, 677835, 728045, 1310481, 2184135, 3931443, 6552405, 19657215]

約数ペア:

[(1, 19657215), (3, 6552405), (5, 3931443), (9, 2184135), (15, 1310481), (27, 728045), (29, 677835), (45, 436827), (87, 225945), (135, 145609), (145, 135567), (261, 75315), (435, 45189), (783, 25105), (1305, 15063), (3915, 5021)]