30091971

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 50830080

約数和(自身を除く): 20738109

約数列:

[1, 3, 7, 13, 21, 39, 61, 91, 139, 169, 183, 273, 417, 427, 507, 793, 973, 1183, 1281, 1807, 2379, 2919, 3549, 5421, 5551, 8479, 10309, 12649, 16653, 23491, 25437, 30927, 37947, 59353, 70473, 72163, 110227, 164437, 178059, 216489, 330681, 493311, 771589, 1432951, 2314767, 4298853, 10030657, 30091971]

約数ペア:

[(1, 30091971), (3, 10030657), (7, 4298853), (13, 2314767), (21, 1432951), (39, 771589), (61, 493311), (91, 330681), (139, 216489), (169, 178059), (183, 164437), (273, 110227), (417, 72163), (427, 70473), (507, 59353), (793, 37947), (973, 30927), (1183, 25437), (1281, 23491), (1807, 16653), (2379, 12649), (2919, 10309), (3549, 8479), (5421, 5551)]