21493464

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 56073600

約数和(自身を除く): 34580136

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 59, 86, 118, 129, 172, 177, 236, 258, 344, 353, 354, 472, 516, 706, 708, 1032, 1059, 1412, 1416, 2118, 2537, 2824, 4236, 5074, 7611, 8472, 10148, 15179, 15222, 20296, 20827, 30358, 30444, 41654, 45537, 60716, 60888, 62481, 83308, 91074, 121432, 124962, 166616, 182148, 249924, 364296, 499848, 895561, 1791122, 2686683, 3582244, 5373366, 7164488, 10746732, 21493464]

約数ペア:

[(1, 21493464), (2, 10746732), (3, 7164488), (4, 5373366), (6, 3582244), (8, 2686683), (12, 1791122), (24, 895561), (43, 499848), (59, 364296), (86, 249924), (118, 182148), (129, 166616), (172, 124962), (177, 121432), (236, 91074), (258, 83308), (344, 62481), (353, 60888), (354, 60716), (472, 45537), (516, 41654), (706, 30444), (708, 30358), (1032, 20827), (1059, 20296), (1412, 15222), (1416, 15179), (2118, 10148), (2537, 8472), (2824, 7611), (4236, 5074)]