20818917

素因数分解:

$3^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1867}}^1$

素因数の和:1942

約数の個数: 32

約数和(自身を含む): 35865600

約数和(自身を除く): 15046683

約数列:

[1, 3, 7, 9, 21, 27, 59, 63, 177, 189, 413, 531, 1239, 1593, 1867, 3717, 5601, 11151, 13069, 16803, 39207, 50409, 110153, 117621, 330459, 352863, 771071, 991377, 2313213, 2974131, 6939639, 20818917]

約数ペア:

[(1, 20818917), (3, 6939639), (7, 2974131), (9, 2313213), (21, 991377), (27, 771071), (59, 352863), (63, 330459), (177, 117621), (189, 110153), (413, 50409), (531, 39207), (1239, 16803), (1593, 13069), (1867, 11151), (3717, 5601)]