209881388

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{23561}}^1$

素因数の和:23713

約数の個数: 24

約数和(自身を含む): 391883184

約数和(自身を除く): 182001796

約数列:

[1, 2, 4, 17, 34, 68, 131, 262, 524, 2227, 4454, 8908, 23561, 47122, 94244, 400537, 801074, 1602148, 3086491, 6172982, 12345964, 52470347, 104940694, 209881388]

約数ペア:

[(1, 209881388), (2, 104940694), (4, 52470347), (17, 12345964), (34, 6172982), (68, 3086491), (131, 1602148), (262, 801074), (524, 400537), (2227, 94244), (4454, 47122), (8908, 23561)]