21630784

素因数分解:

$2^6\times 7^1\times {\mathrm{53}}^1\times {\mathrm{911}}^1$

素因数の和:983

約数の個数: 56

約数和(自身を含む): 50035968

約数和(自身を除く): 28405184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 212, 224, 371, 424, 448, 742, 848, 911, 1484, 1696, 1822, 2968, 3392, 3644, 5936, 6377, 7288, 11872, 12754, 14576, 23744, 25508, 29152, 48283, 51016, 58304, 96566, 102032, 193132, 204064, 337981, 386264, 408128, 675962, 772528, 1351924, 1545056, 2703848, 3090112, 5407696, 10815392, 21630784]

約数ペア:

[(1, 21630784), (2, 10815392), (4, 5407696), (7, 3090112), (8, 2703848), (14, 1545056), (16, 1351924), (28, 772528), (32, 675962), (53, 408128), (56, 386264), (64, 337981), (106, 204064), (112, 193132), (212, 102032), (224, 96566), (371, 58304), (424, 51016), (448, 48283), (742, 29152), (848, 25508), (911, 23744), (1484, 14576), (1696, 12754), (1822, 11872), (2968, 7288), (3392, 6377), (3644, 5936)]