19945566

素因数分解:

$2^1\times 3^2\times {\mathrm{223}}^1\times {\mathrm{4969}}^1$

素因数の和:5200

約数の個数: 24

約数和(自身を含む): 43417920

約数和(自身を除く): 23472354

約数列:

[1, 2, 3, 6, 9, 18, 223, 446, 669, 1338, 2007, 4014, 4969, 9938, 14907, 29814, 44721, 89442, 1108087, 2216174, 3324261, 6648522, 9972783, 19945566]

約数ペア:

[(1, 19945566), (2, 9972783), (3, 6648522), (6, 3324261), (9, 2216174), (18, 1108087), (223, 89442), (446, 44721), (669, 29814), (1338, 14907), (2007, 9938), (4014, 4969)]