20510823

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 31069440

約数和(自身を除く): 10558617

約数列:

[1, 3, 17, 19, 51, 57, 61, 183, 323, 347, 969, 1037, 1041, 1159, 3111, 3477, 5899, 6593, 17697, 19703, 19779, 21167, 59109, 63501, 112081, 336243, 359839, 402173, 1079517, 1206519, 6836941, 20510823]

約数ペア:

[(1, 20510823), (3, 6836941), (17, 1206519), (19, 1079517), (51, 402173), (57, 359839), (61, 336243), (183, 112081), (323, 63501), (347, 59109), (969, 21167), (1037, 19779), (1041, 19703), (1159, 17697), (3111, 6593), (3477, 5899)]