1001256981

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{379}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 1383321600

約数和(自身を除く): 382064619

約数列:

[1, 3, 71, 79, 157, 213, 237, 379, 471, 1137, 5609, 11147, 12403, 16827, 26909, 29941, 33441, 37209, 59503, 80727, 89823, 178509, 880613, 2125811, 2641839, 4224713, 4700737, 6377433, 12674139, 14102211, 333752327, 1001256981]

約数ペア:

[(1, 1001256981), (3, 333752327), (71, 14102211), (79, 12674139), (157, 6377433), (213, 4700737), (237, 4224713), (379, 2641839), (471, 2125811), (1137, 880613), (5609, 178509), (11147, 89823), (12403, 80727), (16827, 59503), (26909, 37209), (29941, 33441)]