21152690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{162713}}^1$

素因数の和:162733

約数の個数: 16

約数和(自身を含む): 41003928

約数和(自身を除く): 19851238

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 162713, 325426, 813565, 1627130, 2115269, 4230538, 10576345, 21152690]

約数ペア:

[(1, 21152690), (2, 10576345), (5, 4230538), (10, 2115269), (13, 1627130), (26, 813565), (65, 325426), (130, 162713)]