21768688

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{15287}}^1$

素因数の和:15384

約数の個数: 20

約数和(自身を含む): 42653520

約数和(自身を除く): 20884832

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 15287, 30574, 61148, 122296, 244592, 1360543, 2721086, 5442172, 10884344, 21768688]

約数ペア:

[(1, 21768688), (2, 10884344), (4, 5442172), (8, 2721086), (16, 1360543), (89, 244592), (178, 122296), (356, 61148), (712, 30574), (1424, 15287)]