20554911

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:552

約数の個数: 32

約数和(自身を含む): 33091520

約数和(自身を除く): 12536609

約数列:

[1, 3, 9, 13, 27, 39, 117, 157, 351, 373, 471, 1119, 1413, 2041, 3357, 4239, 4849, 6123, 10071, 14547, 18369, 43641, 55107, 58561, 130923, 175683, 527049, 761293, 1581147, 2283879, 6851637, 20554911]

約数ペア:

[(1, 20554911), (3, 6851637), (9, 2283879), (13, 1581147), (27, 761293), (39, 527049), (117, 175683), (157, 130923), (351, 58561), (373, 55107), (471, 43641), (1119, 18369), (1413, 14547), (2041, 10071), (3357, 6123), (4239, 4849)]