20817678

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 50135040

約数和(自身を除く): 29317362

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 59, 62, 93, 118, 177, 186, 217, 271, 354, 413, 434, 542, 651, 813, 826, 1239, 1302, 1626, 1829, 1897, 2478, 3658, 3794, 5487, 5691, 8401, 10974, 11382, 12803, 15989, 16802, 25203, 25606, 31978, 38409, 47967, 50406, 58807, 76818, 95934, 111923, 117614, 176421, 223846, 335769, 352842, 495659, 671538, 991318, 1486977, 2973954, 3469613, 6939226, 10408839, 20817678]

約数ペア:

[(1, 20817678), (2, 10408839), (3, 6939226), (6, 3469613), (7, 2973954), (14, 1486977), (21, 991318), (31, 671538), (42, 495659), (59, 352842), (62, 335769), (93, 223846), (118, 176421), (177, 117614), (186, 111923), (217, 95934), (271, 76818), (354, 58807), (413, 50406), (434, 47967), (542, 38409), (651, 31978), (813, 25606), (826, 25203), (1239, 16802), (1302, 15989), (1626, 12803), (1829, 11382), (1897, 10974), (2478, 8401), (3658, 5691), (3794, 5487)]