19973778

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^2\times {\mathrm{137}}^1$

素因数の和:247

約数の個数: 48

約数和(自身を含む): 44851104

約数和(自身を除く): 24877326

約数列:

[1, 2, 3, 6, 11, 22, 33, 47, 66, 94, 137, 141, 274, 282, 411, 517, 822, 1034, 1507, 1551, 2209, 3014, 3102, 4418, 4521, 6439, 6627, 9042, 12878, 13254, 19317, 24299, 38634, 48598, 70829, 72897, 141658, 145794, 212487, 302633, 424974, 605266, 907899, 1815798, 3328963, 6657926, 9986889, 19973778]

約数ペア:

[(1, 19973778), (2, 9986889), (3, 6657926), (6, 3328963), (11, 1815798), (22, 907899), (33, 605266), (47, 424974), (66, 302633), (94, 212487), (137, 145794), (141, 141658), (274, 72897), (282, 70829), (411, 48598), (517, 38634), (822, 24299), (1034, 19317), (1507, 13254), (1551, 12878), (2209, 9042), (3014, 6627), (3102, 6439), (4418, 4521)]