21092679

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 34744320

約数和(自身を除く): 13651641

約数列:

[1, 3, 9, 19, 23, 31, 57, 69, 93, 171, 173, 207, 279, 437, 519, 589, 713, 1311, 1557, 1767, 2139, 3287, 3933, 3979, 5301, 5363, 6417, 9861, 11937, 13547, 16089, 29583, 35811, 40641, 48267, 75601, 101897, 121923, 123349, 226803, 305691, 370047, 680409, 917073, 1110141, 2343631, 7030893, 21092679]

約数ペア:

[(1, 21092679), (3, 7030893), (9, 2343631), (19, 1110141), (23, 917073), (31, 680409), (57, 370047), (69, 305691), (93, 226803), (171, 123349), (173, 121923), (207, 101897), (279, 75601), (437, 48267), (519, 40641), (589, 35811), (713, 29583), (1311, 16089), (1557, 13547), (1767, 11937), (2139, 9861), (3287, 6417), (3933, 5363), (3979, 5301)]