21930795

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 39936000

約数和(自身を除く): 18005205

約数列:

[1, 3, 5, 9, 15, 31, 45, 79, 93, 155, 199, 237, 279, 395, 465, 597, 711, 995, 1185, 1395, 1791, 2449, 2985, 3555, 6169, 7347, 8955, 12245, 15721, 18507, 22041, 30845, 36735, 47163, 55521, 78605, 92535, 110205, 141489, 235815, 277605, 487351, 707445, 1462053, 2436755, 4386159, 7310265, 21930795]

約数ペア:

[(1, 21930795), (3, 7310265), (5, 4386159), (9, 2436755), (15, 1462053), (31, 707445), (45, 487351), (79, 277605), (93, 235815), (155, 141489), (199, 110205), (237, 92535), (279, 78605), (395, 55521), (465, 47163), (597, 36735), (711, 30845), (995, 22041), (1185, 18507), (1395, 15721), (1791, 12245), (2449, 8955), (2985, 7347), (3555, 6169)]