21269696

素因数分解:

$2^6\times 7^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:457

約数の個数: 56

約数和(自身を含む): 48682656

約数和(自身を除く): 27412960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 197, 224, 241, 394, 448, 482, 788, 964, 1379, 1576, 1687, 1928, 2758, 3152, 3374, 3856, 5516, 6304, 6748, 7712, 11032, 12608, 13496, 15424, 22064, 26992, 44128, 47477, 53984, 88256, 94954, 107968, 189908, 332339, 379816, 664678, 759632, 1329356, 1519264, 2658712, 3038528, 5317424, 10634848, 21269696]

約数ペア:

[(1, 21269696), (2, 10634848), (4, 5317424), (7, 3038528), (8, 2658712), (14, 1519264), (16, 1329356), (28, 759632), (32, 664678), (56, 379816), (64, 332339), (112, 189908), (197, 107968), (224, 94954), (241, 88256), (394, 53984), (448, 47477), (482, 44128), (788, 26992), (964, 22064), (1379, 15424), (1576, 13496), (1687, 12608), (1928, 11032), (2758, 7712), (3152, 6748), (3374, 6304), (3856, 5516)]