21279126

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28487274

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 66, 71, 114, 142, 209, 213, 239, 418, 426, 478, 627, 717, 781, 1254, 1349, 1434, 1562, 2343, 2629, 2698, 4047, 4541, 4686, 5258, 7887, 8094, 9082, 13623, 14839, 15774, 16969, 27246, 29678, 33938, 44517, 49951, 50907, 89034, 99902, 101814, 149853, 186659, 299706, 322411, 373318, 559977, 644822, 967233, 1119954, 1934466, 3546521, 7093042, 10639563, 21279126]

約数ペア:

[(1, 21279126), (2, 10639563), (3, 7093042), (6, 3546521), (11, 1934466), (19, 1119954), (22, 967233), (33, 644822), (38, 559977), (57, 373318), (66, 322411), (71, 299706), (114, 186659), (142, 149853), (209, 101814), (213, 99902), (239, 89034), (418, 50907), (426, 49951), (478, 44517), (627, 33938), (717, 29678), (781, 27246), (1254, 16969), (1349, 15774), (1434, 14839), (1562, 13623), (2343, 9082), (2629, 8094), (2698, 7887), (4047, 5258), (4541, 4686)]