19754974

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^2$

素因数の和:252

約数の個数: 24

約数和(自身を含む): 31723560

約数和(自身を除く): 11968586

約数列:

[1, 2, 29, 43, 58, 86, 89, 178, 1247, 2494, 2581, 3827, 5162, 7654, 7921, 15842, 110983, 221966, 229709, 340603, 459418, 681206, 9877487, 19754974]

約数ペア:

[(1, 19754974), (2, 9877487), (29, 681206), (43, 459418), (58, 340603), (86, 229709), (89, 221966), (178, 110983), (1247, 15842), (2494, 7921), (2581, 7654), (3827, 5162)]