20908538

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1489}}^1$

素因数の和:1574

約数の個数: 32

約数和(自身を含む): 38620800

約数和(自身を除く): 17712262

約数列:

[1, 2, 7, 14, 17, 34, 59, 118, 119, 238, 413, 826, 1003, 1489, 2006, 2978, 7021, 10423, 14042, 20846, 25313, 50626, 87851, 175702, 177191, 354382, 614957, 1229914, 1493467, 2986934, 10454269, 20908538]

約数ペア:

[(1, 20908538), (2, 10454269), (7, 2986934), (14, 1493467), (17, 1229914), (34, 614957), (59, 354382), (118, 177191), (119, 175702), (238, 87851), (413, 50626), (826, 25313), (1003, 20846), (1489, 14042), (2006, 10423), (2978, 7021)]