21989224

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{151}}^1\times {\mathrm{167}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 42134400

約数和(自身を除く): 20145176

約数列:

[1, 2, 4, 8, 109, 151, 167, 218, 302, 334, 436, 604, 668, 872, 1208, 1336, 16459, 18203, 25217, 32918, 36406, 50434, 65836, 72812, 100868, 131672, 145624, 201736, 2748653, 5497306, 10994612, 21989224]

約数ペア:

[(1, 21989224), (2, 10994612), (4, 5497306), (8, 2748653), (109, 201736), (151, 145624), (167, 131672), (218, 100868), (302, 72812), (334, 65836), (436, 50434), (604, 36406), (668, 32918), (872, 25217), (1208, 18203), (1336, 16459)]