21087048

素因数分解:

$2^3\times 3^1\times {\mathrm{421}}^1\times {\mathrm{2087}}^1$

素因数の和:2517

約数の個数: 32

約数和(自身を含む): 52868160

約数和(自身を除く): 31781112

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 421, 842, 1263, 1684, 2087, 2526, 3368, 4174, 5052, 6261, 8348, 10104, 12522, 16696, 25044, 50088, 878627, 1757254, 2635881, 3514508, 5271762, 7029016, 10543524, 21087048]

約数ペア:

[(1, 21087048), (2, 10543524), (3, 7029016), (4, 5271762), (6, 3514508), (8, 2635881), (12, 1757254), (24, 878627), (421, 50088), (842, 25044), (1263, 16696), (1684, 12522), (2087, 10104), (2526, 8348), (3368, 6261), (4174, 5052)]