19930305

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1409}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 34110720

約数和(自身を除く): 14180415

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1409, 2829, 4227, 4715, 7045, 14145, 21135, 32407, 57769, 97221, 162035, 173307, 288845, 486105, 866535, 1328687, 3986061, 6643435, 19930305]

約数ペア:

[(1, 19930305), (3, 6643435), (5, 3986061), (15, 1328687), (23, 866535), (41, 486105), (69, 288845), (115, 173307), (123, 162035), (205, 97221), (345, 57769), (615, 32407), (943, 21135), (1409, 14145), (2829, 7045), (4227, 4715)]