28287789

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 41712000

約数和(自身を除く): 13424211

約数列:

[1, 3, 19, 29, 57, 87, 109, 157, 327, 471, 551, 1653, 2071, 2983, 3161, 4553, 6213, 8949, 9483, 13659, 17113, 51339, 60059, 86507, 180177, 259521, 325147, 496277, 975441, 1488831, 9429263, 28287789]

約数ペア:

[(1, 28287789), (3, 9429263), (19, 1488831), (29, 975441), (57, 496277), (87, 325147), (109, 259521), (157, 180177), (327, 86507), (471, 60059), (551, 51339), (1653, 17113), (2071, 13659), (2983, 9483), (3161, 8949), (4553, 6213)]