21097140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1459}}^1$

素因数の和:1712

約数の個数: 48

約数和(自身を含む): 59357760

約数和(自身を除く): 38260620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 241, 482, 723, 964, 1205, 1446, 1459, 2410, 2892, 2918, 3615, 4377, 4820, 5836, 7230, 7295, 8754, 14460, 14590, 17508, 21885, 29180, 43770, 87540, 351619, 703238, 1054857, 1406476, 1758095, 2109714, 3516190, 4219428, 5274285, 7032380, 10548570, 21097140]

約数ペア:

[(1, 21097140), (2, 10548570), (3, 7032380), (4, 5274285), (5, 4219428), (6, 3516190), (10, 2109714), (12, 1758095), (15, 1406476), (20, 1054857), (30, 703238), (60, 351619), (241, 87540), (482, 43770), (723, 29180), (964, 21885), (1205, 17508), (1446, 14590), (1459, 14460), (2410, 8754), (2892, 7295), (2918, 7230), (3615, 5836), (4377, 4820)]