21485841

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1409}}^1$

素因数の和:1465

約数の個数: 32

約数和(自身を含む): 34110720

約数和(自身を除く): 12624879

約数列:

[1, 3, 13, 17, 23, 39, 51, 69, 221, 299, 391, 663, 897, 1173, 1409, 4227, 5083, 15249, 18317, 23953, 32407, 54951, 71859, 97221, 311389, 421291, 550919, 934167, 1263873, 1652757, 7161947, 21485841]

約数ペア:

[(1, 21485841), (3, 7161947), (13, 1652757), (17, 1263873), (23, 934167), (39, 550919), (51, 421291), (69, 311389), (221, 97221), (299, 71859), (391, 54951), (663, 32407), (897, 23953), (1173, 18317), (1409, 15249), (4227, 5083)]