21784686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{773}}^1$

素因数の和:857

約数の個数: 64

約数和(自身を含む): 55282176

約数和(自身を除く): 33497490

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 61, 66, 77, 122, 154, 183, 231, 366, 427, 462, 671, 773, 854, 1281, 1342, 1546, 2013, 2319, 2562, 4026, 4638, 4697, 5411, 8503, 9394, 10822, 14091, 16233, 17006, 25509, 28182, 32466, 47153, 51018, 59521, 94306, 119042, 141459, 178563, 282918, 330071, 357126, 518683, 660142, 990213, 1037366, 1556049, 1980426, 3112098, 3630781, 7261562, 10892343, 21784686]

約数ペア:

[(1, 21784686), (2, 10892343), (3, 7261562), (6, 3630781), (7, 3112098), (11, 1980426), (14, 1556049), (21, 1037366), (22, 990213), (33, 660142), (42, 518683), (61, 357126), (66, 330071), (77, 282918), (122, 178563), (154, 141459), (183, 119042), (231, 94306), (366, 59521), (427, 51018), (462, 47153), (671, 32466), (773, 28182), (854, 25509), (1281, 17006), (1342, 16233), (1546, 14091), (2013, 10822), (2319, 9394), (2562, 8503), (4026, 5411), (4638, 4697)]