21721014

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{8209}}^1$

素因数の和:8234

約数の個数: 48

約数和(自身を含む): 56156400

約数和(自身を除く): 34435386

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 882, 1323, 2646, 8209, 16418, 24627, 49254, 57463, 73881, 114926, 147762, 172389, 221643, 344778, 402241, 443286, 517167, 804482, 1034334, 1206723, 1551501, 2413446, 3103002, 3620169, 7240338, 10860507, 21721014]

約数ペア:

[(1, 21721014), (2, 10860507), (3, 7240338), (6, 3620169), (7, 3103002), (9, 2413446), (14, 1551501), (18, 1206723), (21, 1034334), (27, 804482), (42, 517167), (49, 443286), (54, 402241), (63, 344778), (98, 221643), (126, 172389), (147, 147762), (189, 114926), (294, 73881), (378, 57463), (441, 49254), (882, 24627), (1323, 16418), (2646, 8209)]