21521422

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 64

約数和(自身を含む): 40279680

約数和(自身を除く): 18758258

約数列:

[1, 2, 13, 17, 23, 26, 29, 34, 46, 58, 73, 146, 221, 299, 377, 391, 442, 493, 598, 667, 754, 782, 949, 986, 1241, 1334, 1679, 1898, 2117, 2482, 3358, 4234, 5083, 6409, 8671, 10166, 11339, 12818, 16133, 17342, 21827, 22678, 27521, 28543, 32266, 35989, 43654, 48691, 55042, 57086, 71978, 97382, 147407, 294814, 371059, 467857, 632983, 742118, 827747, 935714, 1265966, 1655494, 10760711, 21521422]

約数ペア:

[(1, 21521422), (2, 10760711), (13, 1655494), (17, 1265966), (23, 935714), (26, 827747), (29, 742118), (34, 632983), (46, 467857), (58, 371059), (73, 294814), (146, 147407), (221, 97382), (299, 71978), (377, 57086), (391, 55042), (442, 48691), (493, 43654), (598, 35989), (667, 32266), (754, 28543), (782, 27521), (949, 22678), (986, 21827), (1241, 17342), (1334, 16133), (1679, 12818), (1898, 11339), (2117, 10166), (2482, 8671), (3358, 6409), (4234, 5083)]