20289454

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8753}}^1$

素因数の和:8835

約数の個数: 16

約数和(自身を含む): 32564880

約数和(自身を除く): 12275426

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 8753, 17506, 166307, 332614, 533933, 1067866, 10144727, 20289454]

約数ペア:

[(1, 20289454), (2, 10144727), (19, 1067866), (38, 533933), (61, 332614), (122, 166307), (1159, 17506), (2318, 8753)]