18814458

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{251}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 42039648

約数和(自身を除く): 23225190

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 251, 403, 502, 753, 806, 961, 1209, 1506, 1922, 2418, 2883, 3263, 5766, 6526, 7781, 9789, 12493, 15562, 19578, 23343, 24986, 37479, 46686, 74958, 101153, 202306, 241211, 303459, 482422, 606918, 723633, 1447266, 3135743, 6271486, 9407229, 18814458]

約数ペア:

[(1, 18814458), (2, 9407229), (3, 6271486), (6, 3135743), (13, 1447266), (26, 723633), (31, 606918), (39, 482422), (62, 303459), (78, 241211), (93, 202306), (186, 101153), (251, 74958), (403, 46686), (502, 37479), (753, 24986), (806, 23343), (961, 19578), (1209, 15562), (1506, 12493), (1922, 9789), (2418, 7781), (2883, 6526), (3263, 5766)]