21615944

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{7283}}^1$

素因数の和:7349

約数の個数: 32

約数和(自身を含む): 47200320

約数和(自身を除く): 25584376

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 7283, 14566, 29132, 50981, 58264, 101962, 203924, 385999, 407848, 771998, 1543996, 2701993, 3087992, 5403986, 10807972, 21615944]

約数ペア:

[(1, 21615944), (2, 10807972), (4, 5403986), (7, 3087992), (8, 2701993), (14, 1543996), (28, 771998), (53, 407848), (56, 385999), (106, 203924), (212, 101962), (371, 58264), (424, 50981), (742, 29132), (1484, 14566), (2968, 7283)]