19990935

素因数分解:

$3^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{397}}^1$

素因数の和:784

約数の個数: 32

約数和(自身を含む): 35724480

約数和(自身を除く): 15733545

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 373, 397, 1119, 1191, 1865, 1985, 3357, 3573, 5595, 5955, 10071, 10719, 16785, 17865, 50355, 53595, 148081, 444243, 740405, 1332729, 2221215, 3998187, 6663645, 19990935]

約数ペア:

[(1, 19990935), (3, 6663645), (5, 3998187), (9, 2221215), (15, 1332729), (27, 740405), (45, 444243), (135, 148081), (373, 53595), (397, 50355), (1119, 17865), (1191, 16785), (1865, 10719), (1985, 10071), (3357, 5955), (3573, 5595)]