20917803

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21587}}^1$

素因数の和:21626

約数の個数: 16

約数和(自身を含む): 31086720

約数和(自身を除く): 10168917

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21587, 64761, 366979, 410153, 1100937, 1230459, 6972601, 20917803]

約数ペア:

[(1, 20917803), (3, 6972601), (17, 1230459), (19, 1100937), (51, 410153), (57, 366979), (323, 64761), (969, 21587)]