21298706

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74471}}^1$

素因数の和:74497

約数の個数: 16

約数和(自身を含む): 37533888

約数和(自身を除く): 16235182

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74471, 148942, 819181, 968123, 1638362, 1936246, 10649353, 21298706]

約数ペア:

[(1, 21298706), (2, 10649353), (11, 1936246), (13, 1638362), (22, 968123), (26, 819181), (143, 148942), (286, 74471)]