20808874

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:310

約数の個数: 32

約数和(自身を含む): 33970176

約数和(自身を除く): 13161302

約数列:

[1, 2, 31, 37, 47, 62, 74, 94, 193, 386, 1147, 1457, 1739, 2294, 2914, 3478, 5983, 7141, 9071, 11966, 14282, 18142, 53909, 107818, 221371, 281201, 335627, 442742, 562402, 671254, 10404437, 20808874]

約数ペア:

[(1, 20808874), (2, 10404437), (31, 671254), (37, 562402), (47, 442742), (62, 335627), (74, 281201), (94, 221371), (193, 107818), (386, 53909), (1147, 18142), (1457, 14282), (1739, 11966), (2294, 9071), (2914, 7141), (3478, 5983)]