21241638

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1511}}^1$

素因数の和:1601

約数の個数: 48

約数和(自身を含む): 50948352

約数和(自身を除く): 29706714

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 71, 99, 142, 198, 213, 426, 639, 781, 1278, 1511, 1562, 2343, 3022, 4533, 4686, 7029, 9066, 13599, 14058, 16621, 27198, 33242, 49863, 99726, 107281, 149589, 214562, 299178, 321843, 643686, 965529, 1180091, 1931058, 2360182, 3540273, 7080546, 10620819, 21241638]

約数ペア:

[(1, 21241638), (2, 10620819), (3, 7080546), (6, 3540273), (9, 2360182), (11, 1931058), (18, 1180091), (22, 965529), (33, 643686), (66, 321843), (71, 299178), (99, 214562), (142, 149589), (198, 107281), (213, 99726), (426, 49863), (639, 33242), (781, 27198), (1278, 16621), (1511, 14058), (1562, 13599), (2343, 9066), (3022, 7029), (4533, 4686)]