21887344

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1097}}^1$

素因数の和:1177

約数の個数: 40

約数和(自身を含む): 44930160

約数和(自身を除く): 23042816

約数列:

[1, 2, 4, 8, 16, 29, 43, 58, 86, 116, 172, 232, 344, 464, 688, 1097, 1247, 2194, 2494, 4388, 4988, 8776, 9976, 17552, 19952, 31813, 47171, 63626, 94342, 127252, 188684, 254504, 377368, 509008, 754736, 1367959, 2735918, 5471836, 10943672, 21887344]

約数ペア:

[(1, 21887344), (2, 10943672), (4, 5471836), (8, 2735918), (16, 1367959), (29, 754736), (43, 509008), (58, 377368), (86, 254504), (116, 188684), (172, 127252), (232, 94342), (344, 63626), (464, 47171), (688, 31813), (1097, 19952), (1247, 17552), (2194, 9976), (2494, 8776), (4388, 4988)]