21047000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1619}}^1$

素因数の和:1653

約数の個数: 64

約数和(自身を含む): 53071200

約数和(自身を除く): 32024200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1619, 1625, 2600, 3238, 3250, 6476, 6500, 8095, 12952, 13000, 16190, 21047, 32380, 40475, 42094, 64760, 80950, 84188, 105235, 161900, 168376, 202375, 210470, 323800, 404750, 420940, 526175, 809500, 841880, 1052350, 1619000, 2104700, 2630875, 4209400, 5261750, 10523500, 21047000]

約数ペア:

[(1, 21047000), (2, 10523500), (4, 5261750), (5, 4209400), (8, 2630875), (10, 2104700), (13, 1619000), (20, 1052350), (25, 841880), (26, 809500), (40, 526175), (50, 420940), (52, 404750), (65, 323800), (100, 210470), (104, 202375), (125, 168376), (130, 161900), (200, 105235), (250, 84188), (260, 80950), (325, 64760), (500, 42094), (520, 40475), (650, 32380), (1000, 21047), (1300, 16190), (1619, 13000), (1625, 12952), (2600, 8095), (3238, 6500), (3250, 6476)]