20171172

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{547}}^1$

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 54010880

約数和(自身を除く): 33839708

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 439, 547, 878, 1094, 1317, 1641, 1756, 2188, 2634, 3073, 3282, 3829, 5268, 6146, 6564, 7658, 9219, 11487, 12292, 15316, 18438, 22974, 36876, 45948, 240133, 480266, 720399, 960532, 1440798, 1680931, 2881596, 3361862, 5042793, 6723724, 10085586, 20171172]

約数ペア:

[(1, 20171172), (2, 10085586), (3, 6723724), (4, 5042793), (6, 3361862), (7, 2881596), (12, 1680931), (14, 1440798), (21, 960532), (28, 720399), (42, 480266), (84, 240133), (439, 45948), (547, 36876), (878, 22974), (1094, 18438), (1317, 15316), (1641, 12292), (1756, 11487), (2188, 9219), (2634, 7658), (3073, 6564), (3282, 6146), (3829, 5268)]