21690702

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{433}}^1$

素因数の和:486

約数の個数: 72

約数和(自身を含む): 54027792

約数和(自身を除く): 32337090

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 33, 46, 66, 69, 99, 121, 138, 198, 207, 242, 253, 363, 414, 433, 506, 726, 759, 866, 1089, 1299, 1518, 2178, 2277, 2598, 2783, 3897, 4554, 4763, 5566, 7794, 8349, 9526, 9959, 14289, 16698, 19918, 25047, 28578, 29877, 42867, 50094, 52393, 59754, 85734, 89631, 104786, 109549, 157179, 179262, 219098, 314358, 328647, 471537, 657294, 943074, 985941, 1205039, 1971882, 2410078, 3615117, 7230234, 10845351, 21690702]

約数ペア:

[(1, 21690702), (2, 10845351), (3, 7230234), (6, 3615117), (9, 2410078), (11, 1971882), (18, 1205039), (22, 985941), (23, 943074), (33, 657294), (46, 471537), (66, 328647), (69, 314358), (99, 219098), (121, 179262), (138, 157179), (198, 109549), (207, 104786), (242, 89631), (253, 85734), (363, 59754), (414, 52393), (433, 50094), (506, 42867), (726, 29877), (759, 28578), (866, 25047), (1089, 19918), (1299, 16698), (1518, 14289), (2178, 9959), (2277, 9526), (2598, 8349), (2783, 7794), (3897, 5566), (4554, 4763)]