21121148

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 37643760

約数和(自身を除く): 16522612

約数列:

[1, 2, 4, 109, 193, 218, 251, 386, 436, 502, 772, 1004, 21037, 27359, 42074, 48443, 54718, 84148, 96886, 109436, 193772, 5280287, 10560574, 21121148]

約数ペア:

[(1, 21121148), (2, 10560574), (4, 5280287), (109, 193772), (193, 109436), (218, 96886), (251, 84148), (386, 54718), (436, 48443), (502, 42074), (772, 27359), (1004, 21037)]