21264714

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 50342400

約数和(自身を除く): 29077686

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 37, 54, 58, 74, 87, 111, 174, 222, 261, 333, 367, 522, 666, 734, 783, 999, 1073, 1101, 1566, 1998, 2146, 2202, 3219, 3303, 6438, 6606, 9657, 9909, 10643, 13579, 19314, 19818, 21286, 27158, 28971, 31929, 40737, 57942, 63858, 81474, 95787, 122211, 191574, 244422, 287361, 366633, 393791, 574722, 733266, 787582, 1181373, 2362746, 3544119, 7088238, 10632357, 21264714]

約数ペア:

[(1, 21264714), (2, 10632357), (3, 7088238), (6, 3544119), (9, 2362746), (18, 1181373), (27, 787582), (29, 733266), (37, 574722), (54, 393791), (58, 366633), (74, 287361), (87, 244422), (111, 191574), (174, 122211), (222, 95787), (261, 81474), (333, 63858), (367, 57942), (522, 40737), (666, 31929), (734, 28971), (783, 27158), (999, 21286), (1073, 19818), (1101, 19314), (1566, 13579), (1998, 10643), (2146, 9909), (2202, 9657), (3219, 6606), (3303, 6438)]