19982985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{743}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 35140608

約数和(自身を除く): 15157623

約数列:

[1, 3, 5, 11, 15, 33, 55, 163, 165, 489, 743, 815, 1793, 2229, 2445, 3715, 5379, 8173, 8965, 11145, 24519, 26895, 40865, 121109, 122595, 363327, 605545, 1332199, 1816635, 3996597, 6660995, 19982985]

約数ペア:

[(1, 19982985), (3, 6660995), (5, 3996597), (11, 1816635), (15, 1332199), (33, 605545), (55, 363327), (163, 122595), (165, 121109), (489, 40865), (743, 26895), (815, 24519), (1793, 11145), (2229, 8965), (2445, 8173), (3715, 5379)]