21339204

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{541}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 52812480

約数和(自身を除く): 31473276

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 173, 228, 346, 519, 541, 692, 1038, 1082, 1623, 2076, 2164, 3246, 3287, 6492, 6574, 9861, 10279, 13148, 19722, 20558, 30837, 39444, 41116, 61674, 93593, 123348, 187186, 280779, 374372, 561558, 1123116, 1778267, 3556534, 5334801, 7113068, 10669602, 21339204]

約数ペア:

[(1, 21339204), (2, 10669602), (3, 7113068), (4, 5334801), (6, 3556534), (12, 1778267), (19, 1123116), (38, 561558), (57, 374372), (76, 280779), (114, 187186), (173, 123348), (228, 93593), (346, 61674), (519, 41116), (541, 39444), (692, 30837), (1038, 20558), (1082, 19722), (1623, 13148), (2076, 10279), (2164, 9861), (3246, 6574), (3287, 6492)]