21150516

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{521}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 52617600

約数和(自身を除く): 31467084

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 199, 204, 398, 521, 597, 796, 1042, 1194, 1563, 2084, 2388, 3126, 3383, 6252, 6766, 8857, 10149, 13532, 17714, 20298, 26571, 35428, 40596, 53142, 103679, 106284, 207358, 311037, 414716, 622074, 1244148, 1762543, 3525086, 5287629, 7050172, 10575258, 21150516]

約数ペア:

[(1, 21150516), (2, 10575258), (3, 7050172), (4, 5287629), (6, 3525086), (12, 1762543), (17, 1244148), (34, 622074), (51, 414716), (68, 311037), (102, 207358), (199, 106284), (204, 103679), (398, 53142), (521, 40596), (597, 35428), (796, 26571), (1042, 20298), (1194, 17714), (1563, 13532), (2084, 10149), (2388, 8857), (3126, 6766), (3383, 6252)]