1388332

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 2681280

約数和(自身を除く): 1292948

約数列:

[1, 2, 4, 11, 22, 44, 139, 227, 278, 454, 556, 908, 1529, 2497, 3058, 4994, 6116, 9988, 31553, 63106, 126212, 347083, 694166, 1388332]

約数ペア:

[(1, 1388332), (2, 694166), (4, 347083), (11, 126212), (22, 63106), (44, 31553), (139, 9988), (227, 6116), (278, 4994), (454, 3058), (556, 2497), (908, 1529)]