19389328

素因数分解:

$2^4\times 7^1\times {\mathrm{233}}^1\times {\mathrm{743}}^1$

素因数の和:991

約数の個数: 40

約数和(自身を含む): 43175808

約数和(自身を除く): 23786480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 233, 466, 743, 932, 1486, 1631, 1864, 2972, 3262, 3728, 5201, 5944, 6524, 10402, 11888, 13048, 20804, 26096, 41608, 83216, 173119, 346238, 692476, 1211833, 1384952, 2423666, 2769904, 4847332, 9694664, 19389328]

約数ペア:

[(1, 19389328), (2, 9694664), (4, 4847332), (7, 2769904), (8, 2423666), (14, 1384952), (16, 1211833), (28, 692476), (56, 346238), (112, 173119), (233, 83216), (466, 41608), (743, 26096), (932, 20804), (1486, 13048), (1631, 11888), (1864, 10402), (2972, 6524), (3262, 5944), (3728, 5201)]