18638958

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1213}}^1$

素因数の和:1428

約数の個数: 32

約数和(自身を含む): 40382496

約数和(自身を除く): 21743538

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 197, 394, 591, 1182, 1213, 2426, 2561, 3639, 5122, 7278, 7683, 15366, 15769, 31538, 47307, 94614, 238961, 477922, 716883, 1433766, 3106493, 6212986, 9319479, 18638958]

約数ペア:

[(1, 18638958), (2, 9319479), (3, 6212986), (6, 3106493), (13, 1433766), (26, 716883), (39, 477922), (78, 238961), (197, 94614), (394, 47307), (591, 31538), (1182, 15769), (1213, 15366), (2426, 7683), (2561, 7278), (3639, 5122)]