19997955

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3613}}^1$

素因数の和:3668

約数の個数: 32

約数和(自身を含む): 36429120

約数和(自身を除く): 16431165

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 123, 135, 205, 369, 615, 1107, 1845, 3613, 5535, 10839, 18065, 32517, 54195, 97551, 148133, 162585, 444399, 487755, 740665, 1333197, 2221995, 3999591, 6665985, 19997955]

約数ペア:

[(1, 19997955), (3, 6665985), (5, 3999591), (9, 2221995), (15, 1333197), (27, 740665), (41, 487755), (45, 444399), (123, 162585), (135, 148133), (205, 97551), (369, 54195), (615, 32517), (1107, 18065), (1845, 10839), (3613, 5535)]