21486998

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{421}}^1$

素因数の和:600

約数の個数: 24

約数和(自身を含む): 35215056

約数和(自身を除く): 13728058

約数列:

[1, 2, 13, 26, 151, 169, 302, 338, 421, 842, 1963, 3926, 5473, 10946, 25519, 51038, 63571, 71149, 127142, 142298, 826423, 1652846, 10743499, 21486998]

約数ペア:

[(1, 21486998), (2, 10743499), (13, 1652846), (26, 826423), (151, 142298), (169, 127142), (302, 71149), (338, 63571), (421, 51038), (842, 25519), (1963, 10946), (3926, 5473)]