21475916

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1423}}^1$

素因数の和:1459

約数の個数: 48

約数和(自身を含む): 47846400

約数和(自身を除く): 26370484

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 343, 539, 686, 1078, 1372, 1423, 2156, 2846, 3773, 5692, 7546, 9961, 15092, 15653, 19922, 31306, 39844, 62612, 69727, 109571, 139454, 219142, 278908, 438284, 488089, 766997, 976178, 1533994, 1952356, 3067988, 5368979, 10737958, 21475916]

約数ペア:

[(1, 21475916), (2, 10737958), (4, 5368979), (7, 3067988), (11, 1952356), (14, 1533994), (22, 976178), (28, 766997), (44, 488089), (49, 438284), (77, 278908), (98, 219142), (154, 139454), (196, 109571), (308, 69727), (343, 62612), (539, 39844), (686, 31306), (1078, 19922), (1372, 15653), (1423, 15092), (2156, 9961), (2846, 7546), (3773, 5692)]