19971248

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2141}}^1$

素因数の和:2213

約数の個数: 40

約数和(自身を含む): 43028496

約数和(自身を除く): 23057248

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 53, 88, 106, 176, 212, 424, 583, 848, 1166, 2141, 2332, 4282, 4664, 8564, 9328, 17128, 23551, 34256, 47102, 94204, 113473, 188408, 226946, 376816, 453892, 907784, 1248203, 1815568, 2496406, 4992812, 9985624, 19971248]

約数ペア:

[(1, 19971248), (2, 9985624), (4, 4992812), (8, 2496406), (11, 1815568), (16, 1248203), (22, 907784), (44, 453892), (53, 376816), (88, 226946), (106, 188408), (176, 113473), (212, 94204), (424, 47102), (583, 34256), (848, 23551), (1166, 17128), (2141, 9328), (2332, 8564), (4282, 4664)]