21426948

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:265

約数の個数: 72

約数和(自身を含む): 56137536

約数和(自身を除く): 34710588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 83, 101, 142, 166, 202, 213, 249, 284, 303, 332, 404, 426, 498, 606, 639, 747, 852, 909, 996, 1212, 1278, 1494, 1818, 2556, 2988, 3636, 5893, 7171, 8383, 11786, 14342, 16766, 17679, 21513, 23572, 25149, 28684, 33532, 35358, 43026, 50298, 53037, 64539, 70716, 75447, 86052, 100596, 106074, 129078, 150894, 212148, 258156, 301788, 595193, 1190386, 1785579, 2380772, 3571158, 5356737, 7142316, 10713474, 21426948]

約数ペア:

[(1, 21426948), (2, 10713474), (3, 7142316), (4, 5356737), (6, 3571158), (9, 2380772), (12, 1785579), (18, 1190386), (36, 595193), (71, 301788), (83, 258156), (101, 212148), (142, 150894), (166, 129078), (202, 106074), (213, 100596), (249, 86052), (284, 75447), (303, 70716), (332, 64539), (404, 53037), (426, 50298), (498, 43026), (606, 35358), (639, 33532), (747, 28684), (852, 25149), (909, 23572), (996, 21513), (1212, 17679), (1278, 16766), (1494, 14342), (1818, 11786), (2556, 8383), (2988, 7171), (3636, 5893)]