21412688

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1367}}^1$

素因数の和:1475

約数の個数: 40

約数和(自身を含む): 45800640

約数和(自身を除く): 24387952

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 89, 176, 178, 356, 712, 979, 1367, 1424, 1958, 2734, 3916, 5468, 7832, 10936, 15037, 15664, 21872, 30074, 60148, 120296, 121663, 240592, 243326, 486652, 973304, 1338293, 1946608, 2676586, 5353172, 10706344, 21412688]

約数ペア:

[(1, 21412688), (2, 10706344), (4, 5353172), (8, 2676586), (11, 1946608), (16, 1338293), (22, 973304), (44, 486652), (88, 243326), (89, 240592), (176, 121663), (178, 120296), (356, 60148), (712, 30074), (979, 21872), (1367, 15664), (1424, 15037), (1958, 10936), (2734, 7832), (3916, 5468)]