21486306

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{67567}}^1$

素因数の和:67625

約数の個数: 16

約数和(自身を含む): 43784064

約数和(自身を除く): 22297758

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 67567, 135134, 202701, 405402, 3581051, 7162102, 10743153, 21486306]

約数ペア:

[(1, 21486306), (2, 10743153), (3, 7162102), (6, 3581051), (53, 405402), (106, 202701), (159, 135134), (318, 67567)]