820684917

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{11909}}^1$

素因数の和:11978

約数の個数: 48

約数和(自身を含む): 1387276800

約数和(自身を除く): 566591883

約数列:

[1, 3, 9, 13, 19, 31, 39, 57, 93, 117, 171, 247, 279, 403, 589, 741, 1209, 1767, 2223, 3627, 5301, 7657, 11909, 22971, 35727, 68913, 107181, 154817, 226271, 369179, 464451, 678813, 1107537, 1393353, 2036439, 2941523, 3322611, 4799327, 7014401, 8824569, 14397981, 21043203, 26473707, 43193943, 63129609, 91187213, 273561639, 820684917]

約数ペア:

[(1, 820684917), (3, 273561639), (9, 91187213), (13, 63129609), (19, 43193943), (31, 26473707), (39, 21043203), (57, 14397981), (93, 8824569), (117, 7014401), (171, 4799327), (247, 3322611), (279, 2941523), (403, 2036439), (589, 1393353), (741, 1107537), (1209, 678813), (1767, 464451), (2223, 369179), (3627, 226271), (5301, 154817), (7657, 107181), (11909, 68913), (22971, 35727)]