19998257838

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{739}}^1\times {\mathrm{346939}}^1$

素因数の和:347696

約数の個数: 32

約数和(自身を含む): 43131580800

約数和(自身を除く): 23133322962

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 739, 1478, 2217, 4434, 9607, 19214, 28821, 57642, 346939, 693878, 1040817, 2081634, 4510207, 9020414, 13530621, 27061242, 256387921, 512775842, 769163763, 1538327526, 3333042973, 6666085946, 9999128919, 19998257838]

約数ペア:

[(1, 19998257838), (2, 9999128919), (3, 6666085946), (6, 3333042973), (13, 1538327526), (26, 769163763), (39, 512775842), (78, 256387921), (739, 27061242), (1478, 13530621), (2217, 9020414), (4434, 4510207), (9607, 2081634), (19214, 1040817), (28821, 693878), (57642, 346939)]