21553730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{379}}^1$

素因数の和:455

約数の個数: 48

約数和(自身を含む): 43666560

約数和(自身を除く): 22112830

約数列:

[1, 2, 5, 10, 11, 22, 47, 55, 94, 110, 121, 235, 242, 379, 470, 517, 605, 758, 1034, 1210, 1895, 2585, 3790, 4169, 5170, 5687, 8338, 11374, 17813, 20845, 28435, 35626, 41690, 45859, 56870, 89065, 91718, 178130, 195943, 229295, 391886, 458590, 979715, 1959430, 2155373, 4310746, 10776865, 21553730]

約数ペア:

[(1, 21553730), (2, 10776865), (5, 4310746), (10, 2155373), (11, 1959430), (22, 979715), (47, 458590), (55, 391886), (94, 229295), (110, 195943), (121, 178130), (235, 91718), (242, 89065), (379, 56870), (470, 45859), (517, 41690), (605, 35626), (758, 28435), (1034, 20845), (1210, 17813), (1895, 11374), (2585, 8338), (3790, 5687), (4169, 5170)]