18900342

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:745

約数の個数: 48

約数和(自身を含む): 43400448

約数和(自身を除く): 24500106

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 71, 138, 142, 207, 213, 414, 426, 639, 643, 1278, 1286, 1633, 1929, 3266, 3858, 4899, 5787, 9798, 11574, 14697, 14789, 29394, 29578, 44367, 45653, 88734, 91306, 133101, 136959, 266202, 273918, 410877, 821754, 1050019, 2100038, 3150057, 6300114, 9450171, 18900342]

約数ペア:

[(1, 18900342), (2, 9450171), (3, 6300114), (6, 3150057), (9, 2100038), (18, 1050019), (23, 821754), (46, 410877), (69, 273918), (71, 266202), (138, 136959), (142, 133101), (207, 91306), (213, 88734), (414, 45653), (426, 44367), (639, 29578), (643, 29394), (1278, 14789), (1286, 14697), (1633, 11574), (1929, 9798), (3266, 5787), (3858, 4899)]