20797785

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15937}}^1$

素因数の和:15977

約数の個数: 24

約数和(自身を含む): 37294920

約数和(自身を除く): 16497135

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15937, 47811, 79685, 143433, 239055, 462173, 717165, 1386519, 2310865, 4159557, 6932595, 20797785]

約数ペア:

[(1, 20797785), (3, 6932595), (5, 4159557), (9, 2310865), (15, 1386519), (29, 717165), (45, 462173), (87, 239055), (145, 143433), (261, 79685), (435, 47811), (1305, 15937)]