21455412

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:269

約数の個数: 96

約数和(自身を含む): 58834944

約数和(自身を除く): 37379532

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 23, 33, 37, 44, 46, 66, 69, 74, 92, 111, 132, 138, 148, 191, 222, 253, 276, 382, 407, 444, 506, 573, 759, 764, 814, 851, 1012, 1146, 1221, 1518, 1628, 1702, 2101, 2292, 2442, 2553, 3036, 3404, 4202, 4393, 4884, 5106, 6303, 7067, 8404, 8786, 9361, 10212, 12606, 13179, 14134, 17572, 18722, 21201, 25212, 26358, 28083, 28268, 37444, 42402, 48323, 52716, 56166, 77737, 84804, 96646, 112332, 144969, 155474, 162541, 193292, 233211, 289938, 310948, 325082, 466422, 487623, 579876, 650164, 932844, 975246, 1787951, 1950492, 3575902, 5363853, 7151804, 10727706, 21455412]

約数ペア:

[(1, 21455412), (2, 10727706), (3, 7151804), (4, 5363853), (6, 3575902), (11, 1950492), (12, 1787951), (22, 975246), (23, 932844), (33, 650164), (37, 579876), (44, 487623), (46, 466422), (66, 325082), (69, 310948), (74, 289938), (92, 233211), (111, 193292), (132, 162541), (138, 155474), (148, 144969), (191, 112332), (222, 96646), (253, 84804), (276, 77737), (382, 56166), (407, 52716), (444, 48323), (506, 42402), (573, 37444), (759, 28268), (764, 28083), (814, 26358), (851, 25212), (1012, 21201), (1146, 18722), (1221, 17572), (1518, 14134), (1628, 13179), (1702, 12606), (2101, 10212), (2292, 9361), (2442, 8786), (2553, 8404), (3036, 7067), (3404, 6303), (4202, 5106), (4393, 4884)]