28405713

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{2557}}^1$

素因数の和:2613

約数の個数: 24

約数和(自身を含む): 45266368

約数和(自身を除く): 16860655

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 529, 1587, 2557, 3703, 7671, 11109, 17899, 53697, 58811, 176433, 411677, 1235031, 1352653, 4057959, 9468571, 28405713]

約数ペア:

[(1, 28405713), (3, 9468571), (7, 4057959), (21, 1352653), (23, 1235031), (69, 411677), (161, 176433), (483, 58811), (529, 53697), (1587, 17899), (2557, 11109), (3703, 7671)]