21354411

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 10901589

約数列:

[1, 3, 13, 29, 39, 79, 87, 237, 239, 377, 717, 1027, 1131, 2291, 3081, 3107, 6873, 6931, 9321, 18881, 20793, 29783, 56643, 89349, 90103, 245453, 270309, 547549, 736359, 1642647, 7118137, 21354411]

約数ペア:

[(1, 21354411), (3, 7118137), (13, 1642647), (29, 736359), (39, 547549), (79, 270309), (87, 245453), (237, 90103), (239, 89349), (377, 56643), (717, 29783), (1027, 20793), (1131, 18881), (2291, 9321), (3081, 6931), (3107, 6873)]