19715505

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{743}}^1$

素因数の和:841

約数の個数: 32

約数和(自身を含む): 33212160

約数和(自身を除く): 13496655

約数列:

[1, 3, 5, 15, 29, 61, 87, 145, 183, 305, 435, 743, 915, 1769, 2229, 3715, 5307, 8845, 11145, 21547, 26535, 45323, 64641, 107735, 135969, 226615, 323205, 679845, 1314367, 3943101, 6571835, 19715505]

約数ペア:

[(1, 19715505), (3, 6571835), (5, 3943101), (15, 1314367), (29, 679845), (61, 323205), (87, 226615), (145, 135969), (183, 107735), (305, 64641), (435, 45323), (743, 26535), (915, 21547), (1769, 11145), (2229, 8845), (3715, 5307)]