19984428

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{9739}}^1$

素因数の和:9771

約数の個数: 48

約数和(自身を含む): 54544000

約数和(自身を除く): 34559572

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 108, 114, 171, 228, 342, 513, 684, 1026, 2052, 9739, 19478, 29217, 38956, 58434, 87651, 116868, 175302, 185041, 262953, 350604, 370082, 525906, 555123, 740164, 1051812, 1110246, 1665369, 2220492, 3330738, 4996107, 6661476, 9992214, 19984428]

約数ペア:

[(1, 19984428), (2, 9992214), (3, 6661476), (4, 4996107), (6, 3330738), (9, 2220492), (12, 1665369), (18, 1110246), (19, 1051812), (27, 740164), (36, 555123), (38, 525906), (54, 370082), (57, 350604), (76, 262953), (108, 185041), (114, 175302), (171, 116868), (228, 87651), (342, 58434), (513, 38956), (684, 29217), (1026, 19478), (2052, 9739)]