20979574

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{2309}}^1$

素因数の和:2388

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 18937226

約数列:

[1, 2, 7, 11, 14, 22, 59, 77, 118, 154, 413, 649, 826, 1298, 2309, 4543, 4618, 9086, 16163, 25399, 32326, 50798, 136231, 177793, 272462, 355586, 953617, 1498541, 1907234, 2997082, 10489787, 20979574]

約数ペア:

[(1, 20979574), (2, 10489787), (7, 2997082), (11, 1907234), (14, 1498541), (22, 953617), (59, 355586), (77, 272462), (118, 177793), (154, 136231), (413, 50798), (649, 32326), (826, 25399), (1298, 16163), (2309, 9086), (4543, 4618)]