2520021

素因数分解:

$3^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:134

約数の個数: 32

約数和(自身を含む): 4096000

約数和(自身を除く): 1575979

約数列:

[1, 3, 7, 21, 31, 49, 79, 93, 147, 217, 237, 343, 553, 651, 1029, 1519, 1659, 2449, 3871, 4557, 7347, 10633, 11613, 17143, 27097, 31899, 51429, 81291, 120001, 360003, 840007, 2520021]

約数ペア:

[(1, 2520021), (3, 840007), (7, 360003), (21, 120001), (31, 81291), (49, 51429), (79, 31899), (93, 27097), (147, 17143), (217, 11613), (237, 10633), (343, 7347), (553, 4557), (651, 3871), (1029, 2449), (1519, 1659)]