21107538

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{773}}^1$

素因数の和:859

約数の個数: 48

約数和(自身を含む): 48176856

約数和(自身を除く): 27069318

約数列:

[1, 2, 3, 6, 9, 18, 37, 41, 74, 82, 111, 123, 222, 246, 333, 369, 666, 738, 773, 1517, 1546, 2319, 3034, 4551, 4638, 6957, 9102, 13653, 13914, 27306, 28601, 31693, 57202, 63386, 85803, 95079, 171606, 190158, 257409, 285237, 514818, 570474, 1172641, 2345282, 3517923, 7035846, 10553769, 21107538]

約数ペア:

[(1, 21107538), (2, 10553769), (3, 7035846), (6, 3517923), (9, 2345282), (18, 1172641), (37, 570474), (41, 514818), (74, 285237), (82, 257409), (111, 190158), (123, 171606), (222, 95079), (246, 85803), (333, 63386), (369, 57202), (666, 31693), (738, 28601), (773, 27306), (1517, 13914), (1546, 13653), (2319, 9102), (3034, 6957), (4551, 4638)]