21701914

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:454

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 15553766

約数列:

[1, 2, 13, 19, 26, 38, 197, 223, 247, 394, 446, 494, 2561, 2899, 3743, 4237, 5122, 5798, 7486, 8474, 43931, 48659, 55081, 87862, 97318, 110162, 571103, 834689, 1142206, 1669378, 10850957, 21701914]

約数ペア:

[(1, 21701914), (2, 10850957), (13, 1669378), (19, 1142206), (26, 834689), (38, 571103), (197, 110162), (223, 97318), (247, 87862), (394, 55081), (446, 48659), (494, 43931), (2561, 8474), (2899, 7486), (3743, 5798), (4237, 5122)]