19664127

素因数分解:

$3^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:537

約数の個数: 40

約数和(自身を含む): 34073600

約数和(自身を除く): 14409473

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 81, 189, 237, 439, 553, 567, 711, 1317, 1659, 2133, 3073, 3951, 4977, 6399, 9219, 11853, 14931, 27657, 34681, 35559, 44793, 82971, 104043, 242767, 248913, 312129, 728301, 936387, 2184903, 2809161, 6554709, 19664127]

約数ペア:

[(1, 19664127), (3, 6554709), (7, 2809161), (9, 2184903), (21, 936387), (27, 728301), (63, 312129), (79, 248913), (81, 242767), (189, 104043), (237, 82971), (439, 44793), (553, 35559), (567, 34681), (711, 27657), (1317, 14931), (1659, 11853), (2133, 9219), (3073, 6399), (3951, 4977)]