858721917

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{1993}}^1$

素因数の和:2181

約数の個数: 32

約数和(自身を含む): 1222050816

約数和(自身を除く): 363328899

約数列:

[1, 3, 31, 41, 93, 113, 123, 339, 1271, 1993, 3503, 3813, 4633, 5979, 10509, 13899, 61783, 81713, 143623, 185349, 225209, 245139, 430869, 675627, 2533103, 6981479, 7599309, 9233569, 20944437, 27700707, 286240639, 858721917]

約数ペア:

[(1, 858721917), (3, 286240639), (31, 27700707), (41, 20944437), (93, 9233569), (113, 7599309), (123, 6981479), (339, 2533103), (1271, 675627), (1993, 430869), (3503, 245139), (3813, 225209), (4633, 185349), (5979, 143623), (10509, 81713), (13899, 61783)]