21152170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{162709}}^1$

素因数の和:162729

約数の個数: 16

約数和(自身を含む): 41002920

約数和(自身を除く): 19850750

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 162709, 325418, 813545, 1627090, 2115217, 4230434, 10576085, 21152170]

約数ペア:

[(1, 21152170), (2, 10576085), (5, 4230434), (10, 2115217), (13, 1627090), (26, 813545), (65, 325418), (130, 162709)]