21014700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{10007}}^1$

素因数の和:10031

約数の個数: 72

約数和(自身を含む): 69495552

約数和(自身を除く): 48480852

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 10007, 20014, 30021, 40028, 50035, 60042, 70049, 100070, 120084, 140098, 150105, 200140, 210147, 250175, 280196, 300210, 350245, 420294, 500350, 600420, 700490, 750525, 840588, 1000700, 1050735, 1400980, 1501050, 1751225, 2101470, 3002100, 3502450, 4202940, 5253675, 7004900, 10507350, 21014700]

約数ペア:

[(1, 21014700), (2, 10507350), (3, 7004900), (4, 5253675), (5, 4202940), (6, 3502450), (7, 3002100), (10, 2101470), (12, 1751225), (14, 1501050), (15, 1400980), (20, 1050735), (21, 1000700), (25, 840588), (28, 750525), (30, 700490), (35, 600420), (42, 500350), (50, 420294), (60, 350245), (70, 300210), (75, 280196), (84, 250175), (100, 210147), (105, 200140), (140, 150105), (150, 140098), (175, 120084), (210, 100070), (300, 70049), (350, 60042), (420, 50035), (525, 40028), (700, 30021), (1050, 20014), (2100, 10007)]