21101028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5881}}^1$

素因数の和:5924

約数の個数: 48

約数和(自身を含む): 55337856

約数和(自身を除く): 34236828

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 276, 299, 598, 897, 1196, 1794, 3588, 5881, 11762, 17643, 23524, 35286, 70572, 76453, 135263, 152906, 229359, 270526, 305812, 405789, 458718, 541052, 811578, 917436, 1623156, 1758419, 3516838, 5275257, 7033676, 10550514, 21101028]

約数ペア:

[(1, 21101028), (2, 10550514), (3, 7033676), (4, 5275257), (6, 3516838), (12, 1758419), (13, 1623156), (23, 917436), (26, 811578), (39, 541052), (46, 458718), (52, 405789), (69, 305812), (78, 270526), (92, 229359), (138, 152906), (156, 135263), (276, 76453), (299, 70572), (598, 35286), (897, 23524), (1196, 17643), (1794, 11762), (3588, 5881)]