20521634

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{431}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 16803166

約数列:

[1, 2, 7, 14, 19, 38, 133, 179, 266, 358, 431, 862, 1253, 2506, 3017, 3401, 6034, 6802, 8189, 16378, 23807, 47614, 57323, 77149, 114646, 154298, 540043, 1080086, 1465831, 2931662, 10260817, 20521634]

約数ペア:

[(1, 20521634), (2, 10260817), (7, 2931662), (14, 1465831), (19, 1080086), (38, 540043), (133, 154298), (179, 114646), (266, 77149), (358, 57323), (431, 47614), (862, 23807), (1253, 16378), (2506, 8189), (3017, 6802), (3401, 6034)]