21188272

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5113}}^1$

素因数の和:5165

約数の個数: 40

約数和(自身を含む): 48194336

約数和(自身を除く): 27006064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 5113, 10226, 20452, 35791, 40904, 71582, 81808, 143164, 189181, 286328, 378362, 572656, 756724, 1324267, 1513448, 2648534, 3026896, 5297068, 10594136, 21188272]

約数ペア:

[(1, 21188272), (2, 10594136), (4, 5297068), (7, 3026896), (8, 2648534), (14, 1513448), (16, 1324267), (28, 756724), (37, 572656), (56, 378362), (74, 286328), (112, 189181), (148, 143164), (259, 81808), (296, 71582), (518, 40904), (592, 35791), (1036, 20452), (2072, 10226), (4144, 5113)]