21444016

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 60

約数和(自身を含む): 47106360

約数和(自身を除く): 25662344

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 89, 148, 176, 178, 296, 356, 407, 592, 712, 814, 979, 1369, 1424, 1628, 1958, 2738, 3256, 3293, 3916, 5476, 6512, 6586, 7832, 10952, 13172, 15059, 15664, 21904, 26344, 30118, 36223, 52688, 60236, 72446, 120472, 121841, 144892, 240944, 243682, 289784, 487364, 579568, 974728, 1340251, 1949456, 2680502, 5361004, 10722008, 21444016]

約数ペア:

[(1, 21444016), (2, 10722008), (4, 5361004), (8, 2680502), (11, 1949456), (16, 1340251), (22, 974728), (37, 579568), (44, 487364), (74, 289784), (88, 243682), (89, 240944), (148, 144892), (176, 121841), (178, 120472), (296, 72446), (356, 60236), (407, 52688), (592, 36223), (712, 30118), (814, 26344), (979, 21904), (1369, 15664), (1424, 15059), (1628, 13172), (1958, 10952), (2738, 7832), (3256, 6586), (3293, 6512), (3916, 5476)]