21650360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 51554880

約数和(自身を除く): 29904520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 101, 115, 184, 202, 230, 233, 404, 460, 466, 505, 808, 920, 932, 1010, 1165, 1864, 2020, 2323, 2330, 4040, 4646, 4660, 5359, 9292, 9320, 10718, 11615, 18584, 21436, 23230, 23533, 26795, 42872, 46460, 47066, 53590, 92920, 94132, 107180, 117665, 188264, 214360, 235330, 470660, 541259, 941320, 1082518, 2165036, 2706295, 4330072, 5412590, 10825180, 21650360]

約数ペア:

[(1, 21650360), (2, 10825180), (4, 5412590), (5, 4330072), (8, 2706295), (10, 2165036), (20, 1082518), (23, 941320), (40, 541259), (46, 470660), (92, 235330), (101, 214360), (115, 188264), (184, 117665), (202, 107180), (230, 94132), (233, 92920), (404, 53590), (460, 47066), (466, 46460), (505, 42872), (808, 26795), (920, 23533), (932, 23230), (1010, 21436), (1165, 18584), (1864, 11615), (2020, 10718), (2323, 9320), (2330, 9292), (4040, 5359), (4646, 4660)]