19988964

素因数分解:

$2^2\times 3^3\times {\mathrm{59}}^1\times {\mathrm{3137}}^1$

素因数の和:3209

約数の個数: 48

約数和(自身を含む): 52718400

約数和(自身を除く): 32729436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 59, 108, 118, 177, 236, 354, 531, 708, 1062, 1593, 2124, 3137, 3186, 6274, 6372, 9411, 12548, 18822, 28233, 37644, 56466, 84699, 112932, 169398, 185083, 338796, 370166, 555249, 740332, 1110498, 1665747, 2220996, 3331494, 4997241, 6662988, 9994482, 19988964]

約数ペア:

[(1, 19988964), (2, 9994482), (3, 6662988), (4, 4997241), (6, 3331494), (9, 2220996), (12, 1665747), (18, 1110498), (27, 740332), (36, 555249), (54, 370166), (59, 338796), (108, 185083), (118, 169398), (177, 112932), (236, 84699), (354, 56466), (531, 37644), (708, 28233), (1062, 18822), (1593, 12548), (2124, 9411), (3137, 6372), (3186, 6274)]