21973923

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{4049}}^1$

素因数の和:4128

約数の個数: 20

約数和(自身を含む): 33323400

約数和(自身を除く): 11349477

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 4049, 5427, 12147, 36441, 109323, 271283, 327969, 813849, 2441547, 7324641, 21973923]

約数ペア:

[(1, 21973923), (3, 7324641), (9, 2441547), (27, 813849), (67, 327969), (81, 271283), (201, 109323), (603, 36441), (1809, 12147), (4049, 5427)]