19720392

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^2\times {\mathrm{163}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 50311920

約数和(自身を除く): 30591528

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 163, 213, 284, 326, 426, 489, 568, 652, 852, 978, 1304, 1704, 1956, 3912, 5041, 10082, 11573, 15123, 20164, 23146, 30246, 34719, 40328, 46292, 60492, 69438, 92584, 120984, 138876, 277752, 821683, 1643366, 2465049, 3286732, 4930098, 6573464, 9860196, 19720392]

約数ペア:

[(1, 19720392), (2, 9860196), (3, 6573464), (4, 4930098), (6, 3286732), (8, 2465049), (12, 1643366), (24, 821683), (71, 277752), (142, 138876), (163, 120984), (213, 92584), (284, 69438), (326, 60492), (426, 46292), (489, 40328), (568, 34719), (652, 30246), (852, 23146), (978, 20164), (1304, 15123), (1704, 11573), (1956, 10082), (3912, 5041)]