19059856

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:991

約数の個数: 40

約数和(自身を含む): 39640320

約数和(自身を除く): 20580464

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 79, 136, 158, 272, 316, 632, 887, 1264, 1343, 1774, 2686, 3548, 5372, 7096, 10744, 14192, 15079, 21488, 30158, 60316, 70073, 120632, 140146, 241264, 280292, 560584, 1121168, 1191241, 2382482, 4764964, 9529928, 19059856]

約数ペア:

[(1, 19059856), (2, 9529928), (4, 4764964), (8, 2382482), (16, 1191241), (17, 1121168), (34, 560584), (68, 280292), (79, 241264), (136, 140146), (158, 120632), (272, 70073), (316, 60316), (632, 30158), (887, 21488), (1264, 15079), (1343, 14192), (1774, 10744), (2686, 7096), (3548, 5372)]