19530399

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{241}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 31781376

約数和(自身を除く): 12250977

約数列:

[1, 3, 7, 17, 21, 51, 119, 227, 241, 357, 681, 723, 1589, 1687, 3859, 4097, 4767, 5061, 11577, 12291, 27013, 28679, 54707, 81039, 86037, 164121, 382949, 930019, 1148847, 2790057, 6510133, 19530399]

約数ペア:

[(1, 19530399), (3, 6510133), (7, 2790057), (17, 1148847), (21, 930019), (51, 382949), (119, 164121), (227, 86037), (241, 81039), (357, 54707), (681, 28679), (723, 27013), (1589, 12291), (1687, 11577), (3859, 5061), (4097, 4767)]