21688216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{6661}}^1$

素因数の和:6715

約数の個数: 32

約数和(自身を含む): 45568080

約数和(自身を除く): 23879864

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 296, 407, 814, 1628, 3256, 6661, 13322, 26644, 53288, 73271, 146542, 246457, 293084, 492914, 586168, 985828, 1971656, 2711027, 5422054, 10844108, 21688216]

約数ペア:

[(1, 21688216), (2, 10844108), (4, 5422054), (8, 2711027), (11, 1971656), (22, 985828), (37, 586168), (44, 492914), (74, 293084), (88, 246457), (148, 146542), (296, 73271), (407, 53288), (814, 26644), (1628, 13322), (3256, 6661)]