21036750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{4007}}^1$

素因数の和:4034

約数の個数: 64

約数和(自身を含む): 60023808

約数和(自身を除く): 38987058

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 125, 150, 175, 210, 250, 350, 375, 525, 750, 875, 1050, 1750, 2625, 4007, 5250, 8014, 12021, 20035, 24042, 28049, 40070, 56098, 60105, 84147, 100175, 120210, 140245, 168294, 200350, 280490, 300525, 420735, 500875, 601050, 701225, 841470, 1001750, 1402450, 1502625, 2103675, 3005250, 3506125, 4207350, 7012250, 10518375, 21036750]

約数ペア:

[(1, 21036750), (2, 10518375), (3, 7012250), (5, 4207350), (6, 3506125), (7, 3005250), (10, 2103675), (14, 1502625), (15, 1402450), (21, 1001750), (25, 841470), (30, 701225), (35, 601050), (42, 500875), (50, 420735), (70, 300525), (75, 280490), (105, 200350), (125, 168294), (150, 140245), (175, 120210), (210, 100175), (250, 84147), (350, 60105), (375, 56098), (525, 40070), (750, 28049), (875, 24042), (1050, 20035), (1750, 12021), (2625, 8014), (4007, 5250)]