20706516

素因数分解:

$2^2\times 3^9\times {\mathrm{263}}^1$

素因数の和:294

約数の個数: 60

約数和(自身を含む): 54560352

約数和(自身を除く): 33853836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 263, 324, 486, 526, 729, 789, 972, 1052, 1458, 1578, 2187, 2367, 2916, 3156, 4374, 4734, 6561, 7101, 8748, 9468, 13122, 14202, 19683, 21303, 26244, 28404, 39366, 42606, 63909, 78732, 85212, 127818, 191727, 255636, 383454, 575181, 766908, 1150362, 1725543, 2300724, 3451086, 5176629, 6902172, 10353258, 20706516]

約数ペア:

[(1, 20706516), (2, 10353258), (3, 6902172), (4, 5176629), (6, 3451086), (9, 2300724), (12, 1725543), (18, 1150362), (27, 766908), (36, 575181), (54, 383454), (81, 255636), (108, 191727), (162, 127818), (243, 85212), (263, 78732), (324, 63909), (486, 42606), (526, 39366), (729, 28404), (789, 26244), (972, 21303), (1052, 19683), (1458, 14202), (1578, 13122), (2187, 9468), (2367, 8748), (2916, 7101), (3156, 6561), (4374, 4734)]