8400042

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:587

約数の個数: 48

約数和(自身を含む): 20978880

約数和(自身を除く): 12578838

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 163, 326, 409, 489, 818, 978, 1141, 1227, 1467, 2282, 2454, 2863, 2934, 3423, 3681, 5726, 6846, 7362, 8589, 10269, 17178, 20538, 25767, 51534, 66667, 133334, 200001, 400002, 466669, 600003, 933338, 1200006, 1400007, 2800014, 4200021, 8400042]

約数ペア:

[(1, 8400042), (2, 4200021), (3, 2800014), (6, 1400007), (7, 1200006), (9, 933338), (14, 600003), (18, 466669), (21, 400002), (42, 200001), (63, 133334), (126, 66667), (163, 51534), (326, 25767), (409, 20538), (489, 17178), (818, 10269), (978, 8589), (1141, 7362), (1227, 6846), (1467, 5726), (2282, 3681), (2454, 3423), (2863, 2934)]