20539932

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{557}}^1$

素因数の和:1010

約数の個数: 48

約数和(自身を含む): 54996480

約数和(自身を除く): 34456548

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 439, 557, 878, 1114, 1317, 1671, 1756, 2228, 2634, 3073, 3342, 3899, 5268, 6146, 6684, 7798, 9219, 11697, 12292, 15596, 18438, 23394, 36876, 46788, 244523, 489046, 733569, 978092, 1467138, 1711661, 2934276, 3423322, 5134983, 6846644, 10269966, 20539932]

約数ペア:

[(1, 20539932), (2, 10269966), (3, 6846644), (4, 5134983), (6, 3423322), (7, 2934276), (12, 1711661), (14, 1467138), (21, 978092), (28, 733569), (42, 489046), (84, 244523), (439, 46788), (557, 36876), (878, 23394), (1114, 18438), (1317, 15596), (1671, 12292), (1756, 11697), (2228, 9219), (2634, 7798), (3073, 6684), (3342, 6146), (3899, 5268)]