20865477

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 31605120

約数和(自身を除く): 10739643

約数列:

[1, 3, 17, 19, 51, 57, 61, 183, 323, 353, 969, 1037, 1059, 1159, 3111, 3477, 6001, 6707, 18003, 19703, 20121, 21533, 59109, 64599, 114019, 342057, 366061, 409127, 1098183, 1227381, 6955159, 20865477]

約数ペア:

[(1, 20865477), (3, 6955159), (17, 1227381), (19, 1098183), (51, 409127), (57, 366061), (61, 342057), (183, 114019), (323, 64599), (353, 59109), (969, 21533), (1037, 20121), (1059, 19703), (1159, 18003), (3111, 6707), (3477, 6001)]