1209948481

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1\times {\mathrm{509}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 1487404800

約数和(自身を除く): 277456319

約数列:

[1, 7, 19, 61, 133, 293, 427, 509, 1159, 2051, 3563, 5567, 8113, 9671, 17873, 31049, 38969, 67697, 125111, 149137, 217343, 339587, 589931, 1043959, 2377109, 2833603, 4129517, 9097357, 19835221, 63681499, 172849783, 1209948481]

約数ペア:

[(1, 1209948481), (7, 172849783), (19, 63681499), (61, 19835221), (133, 9097357), (293, 4129517), (427, 2833603), (509, 2377109), (1159, 1043959), (2051, 589931), (3563, 339587), (5567, 217343), (8113, 149137), (9671, 125111), (17873, 67697), (31049, 38969)]