207978218

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{7591}}^1$

素因数の和:7722

約数の個数: 32

約数和(自身を含む): 378992640

約数和(自身を除く): 171014422

約数列:

[1, 2, 7, 14, 19, 38, 103, 133, 206, 266, 721, 1442, 1957, 3914, 7591, 13699, 15182, 27398, 53137, 106274, 144229, 288458, 781873, 1009603, 1563746, 2019206, 5473111, 10946222, 14855587, 29711174, 103989109, 207978218]

約数ペア:

[(1, 207978218), (2, 103989109), (7, 29711174), (14, 14855587), (19, 10946222), (38, 5473111), (103, 2019206), (133, 1563746), (206, 1009603), (266, 781873), (721, 288458), (1442, 144229), (1957, 106274), (3914, 53137), (7591, 27398), (13699, 15182)]