21211806

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{937}}^1$

素因数の和:974

約数の個数: 64

約数和(自身を含む): 54028800

約数和(自身を除く): 32816994

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 147, 154, 231, 294, 343, 462, 539, 686, 937, 1029, 1078, 1617, 1874, 2058, 2811, 3234, 3773, 5622, 6559, 7546, 10307, 11319, 13118, 19677, 20614, 22638, 30921, 39354, 45913, 61842, 72149, 91826, 137739, 144298, 216447, 275478, 321391, 432894, 505043, 642782, 964173, 1010086, 1515129, 1928346, 3030258, 3535301, 7070602, 10605903, 21211806]

約数ペア:

[(1, 21211806), (2, 10605903), (3, 7070602), (6, 3535301), (7, 3030258), (11, 1928346), (14, 1515129), (21, 1010086), (22, 964173), (33, 642782), (42, 505043), (49, 432894), (66, 321391), (77, 275478), (98, 216447), (147, 144298), (154, 137739), (231, 91826), (294, 72149), (343, 61842), (462, 45913), (539, 39354), (686, 30921), (937, 22638), (1029, 20614), (1078, 19677), (1617, 13118), (1874, 11319), (2058, 10307), (2811, 7546), (3234, 6559), (3773, 5622)]