21165512

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{373}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 40997880

約数和(自身を除く): 19832368

約数列:

[1, 2, 4, 8, 41, 82, 164, 173, 328, 346, 373, 692, 746, 1384, 1492, 2984, 7093, 14186, 15293, 28372, 30586, 56744, 61172, 64529, 122344, 129058, 258116, 516232, 2645689, 5291378, 10582756, 21165512]

約数ペア:

[(1, 21165512), (2, 10582756), (4, 5291378), (8, 2645689), (41, 516232), (82, 258116), (164, 129058), (173, 122344), (328, 64529), (346, 61172), (373, 56744), (692, 30586), (746, 28372), (1384, 15293), (1492, 14186), (2984, 7093)]