21199635

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7723}}^1$

素因数の和:7795

約数の個数: 24

約数和(自身を含む): 37353264

約数和(自身を除く): 16153629

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 7723, 23169, 38615, 69507, 115845, 347535, 471103, 1413309, 2355515, 4239927, 7066545, 21199635]

約数ペア:

[(1, 21199635), (3, 7066545), (5, 4239927), (9, 2355515), (15, 1413309), (45, 471103), (61, 347535), (183, 115845), (305, 69507), (549, 38615), (915, 23169), (2745, 7723)]