21528136

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12401}}^1$

素因数の和:12445

約数の個数: 32

約数和(自身を含む): 47623680

約数和(自身を除く): 26095544

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12401, 24802, 49604, 86807, 99208, 173614, 347228, 384431, 694456, 768862, 1537724, 2691017, 3075448, 5382034, 10764068, 21528136]

約数ペア:

[(1, 21528136), (2, 10764068), (4, 5382034), (7, 3075448), (8, 2691017), (14, 1537724), (28, 768862), (31, 694456), (56, 384431), (62, 347228), (124, 173614), (217, 99208), (248, 86807), (434, 49604), (868, 24802), (1736, 12401)]