21994605

素因数分解:

$3^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{853}}^1$

素因数の和:1058

約数の個数: 32

約数和(自身を含む): 39352320

約数和(自身を除く): 17357715

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 191, 573, 853, 955, 1719, 2559, 2865, 4265, 5157, 7677, 8595, 12795, 23031, 25785, 38385, 115155, 162923, 488769, 814615, 1466307, 2443845, 4398921, 7331535, 21994605]

約数ペア:

[(1, 21994605), (3, 7331535), (5, 4398921), (9, 2443845), (15, 1466307), (27, 814615), (45, 488769), (135, 162923), (191, 115155), (573, 38385), (853, 25785), (955, 23031), (1719, 12795), (2559, 8595), (2865, 7677), (4265, 5157)]