19398715

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{941}}^1$

素因数の和:1003

約数の個数: 32

約数和(自身を含む): 28938240

約数和(自身を除く): 9539525

約数列:

[1, 5, 7, 19, 31, 35, 95, 133, 155, 217, 589, 665, 941, 1085, 2945, 4123, 4705, 6587, 17879, 20615, 29171, 32935, 89395, 125153, 145855, 204197, 554249, 625765, 1020985, 2771245, 3879743, 19398715]

約数ペア:

[(1, 19398715), (5, 3879743), (7, 2771245), (19, 1020985), (31, 625765), (35, 554249), (95, 204197), (133, 145855), (155, 125153), (217, 89395), (589, 32935), (665, 29171), (941, 20615), (1085, 17879), (2945, 6587), (4123, 4705)]