18007956

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 48222720

約数和(自身を除く): 30214764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 47, 58, 87, 94, 116, 141, 174, 188, 261, 282, 348, 367, 423, 522, 564, 734, 846, 1044, 1101, 1363, 1468, 1692, 2202, 2726, 3303, 4089, 4404, 5452, 6606, 8178, 10643, 12267, 13212, 16356, 17249, 21286, 24534, 31929, 34498, 42572, 49068, 51747, 63858, 68996, 95787, 103494, 127716, 155241, 191574, 206988, 310482, 383148, 500221, 620964, 1000442, 1500663, 2000884, 3001326, 4501989, 6002652, 9003978, 18007956]

約数ペア:

[(1, 18007956), (2, 9003978), (3, 6002652), (4, 4501989), (6, 3001326), (9, 2000884), (12, 1500663), (18, 1000442), (29, 620964), (36, 500221), (47, 383148), (58, 310482), (87, 206988), (94, 191574), (116, 155241), (141, 127716), (174, 103494), (188, 95787), (261, 68996), (282, 63858), (348, 51747), (367, 49068), (423, 42572), (522, 34498), (564, 31929), (734, 24534), (846, 21286), (1044, 17249), (1101, 16356), (1363, 13212), (1468, 12267), (1692, 10643), (2202, 8178), (2726, 6606), (3303, 5452), (4089, 4404)]