20385621

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 10948779

約数列:

[1, 3, 9, 27, 59, 67, 177, 191, 201, 531, 573, 603, 1593, 1719, 1809, 3953, 5157, 11269, 11859, 12797, 33807, 35577, 38391, 101421, 106731, 115173, 304263, 345519, 755023, 2265069, 6795207, 20385621]

約数ペア:

[(1, 20385621), (3, 6795207), (9, 2265069), (27, 755023), (59, 345519), (67, 304263), (177, 115173), (191, 106731), (201, 101421), (531, 38391), (573, 35577), (603, 33807), (1593, 12797), (1719, 11859), (1809, 11269), (3953, 5157)]