21666324

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 52236800

約数和(自身を除く): 30570476

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 199, 211, 258, 398, 422, 516, 597, 633, 796, 844, 1194, 1266, 2388, 2532, 8557, 9073, 17114, 18146, 25671, 27219, 34228, 36292, 41989, 51342, 54438, 83978, 102684, 108876, 125967, 167956, 251934, 503868, 1805527, 3611054, 5416581, 7222108, 10833162, 21666324]

約数ペア:

[(1, 21666324), (2, 10833162), (3, 7222108), (4, 5416581), (6, 3611054), (12, 1805527), (43, 503868), (86, 251934), (129, 167956), (172, 125967), (199, 108876), (211, 102684), (258, 83978), (398, 54438), (422, 51342), (516, 41989), (597, 36292), (633, 34228), (796, 27219), (844, 25671), (1194, 18146), (1266, 17114), (2388, 9073), (2532, 8557)]