21132111

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 39223296

約数和(自身を除く): 18091185

約数列:

[1, 3, 7, 11, 13, 21, 31, 33, 39, 77, 91, 93, 143, 217, 227, 231, 273, 341, 403, 429, 651, 681, 1001, 1023, 1209, 1589, 2387, 2497, 2821, 2951, 3003, 4433, 4767, 7037, 7161, 7491, 8463, 8853, 13299, 17479, 20657, 21111, 31031, 32461, 49259, 52437, 61971, 77407, 91481, 93093, 97383, 147777, 227227, 232221, 274443, 541849, 640367, 681681, 1006291, 1625547, 1921101, 3018873, 7044037, 21132111]

約数ペア:

[(1, 21132111), (3, 7044037), (7, 3018873), (11, 1921101), (13, 1625547), (21, 1006291), (31, 681681), (33, 640367), (39, 541849), (77, 274443), (91, 232221), (93, 227227), (143, 147777), (217, 97383), (227, 93093), (231, 91481), (273, 77407), (341, 61971), (403, 52437), (429, 49259), (651, 32461), (681, 31031), (1001, 21111), (1023, 20657), (1209, 17479), (1589, 13299), (2387, 8853), (2497, 8463), (2821, 7491), (2951, 7161), (3003, 7037), (4433, 4767)]