21695436

素因数分解:

$2^2\times 3^2\times 7^4\times {\mathrm{251}}^1$

素因数の和:289

約数の個数: 90

約数和(自身を含む): 64232532

約数和(自身を除く): 42537096

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 251, 252, 294, 343, 441, 502, 588, 686, 753, 882, 1004, 1029, 1372, 1506, 1757, 1764, 2058, 2259, 2401, 3012, 3087, 3514, 4116, 4518, 4802, 5271, 6174, 7028, 7203, 9036, 9604, 10542, 12299, 12348, 14406, 15813, 21084, 21609, 24598, 28812, 31626, 36897, 43218, 49196, 63252, 73794, 86093, 86436, 110691, 147588, 172186, 221382, 258279, 344372, 442764, 516558, 602651, 774837, 1033116, 1205302, 1549674, 1807953, 2410604, 3099348, 3615906, 5423859, 7231812, 10847718, 21695436]

約数ペア:

[(1, 21695436), (2, 10847718), (3, 7231812), (4, 5423859), (6, 3615906), (7, 3099348), (9, 2410604), (12, 1807953), (14, 1549674), (18, 1205302), (21, 1033116), (28, 774837), (36, 602651), (42, 516558), (49, 442764), (63, 344372), (84, 258279), (98, 221382), (126, 172186), (147, 147588), (196, 110691), (251, 86436), (252, 86093), (294, 73794), (343, 63252), (441, 49196), (502, 43218), (588, 36897), (686, 31626), (753, 28812), (882, 24598), (1004, 21609), (1029, 21084), (1372, 15813), (1506, 14406), (1757, 12348), (1764, 12299), (2058, 10542), (2259, 9604), (2401, 9036), (3012, 7203), (3087, 7028), (3514, 6174), (4116, 5271), (4518, 4802)]