21684585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1823}}^1$

素因数の和:1905

約数の個数: 32

約数和(自身を含む): 37997568

約数和(自身を除く): 16312983

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 1823, 2379, 3965, 5469, 9115, 11895, 23699, 27345, 71097, 111203, 118495, 333609, 355485, 556015, 1445639, 1668045, 4336917, 7228195, 21684585]

約数ペア:

[(1, 21684585), (3, 7228195), (5, 4336917), (13, 1668045), (15, 1445639), (39, 556015), (61, 355485), (65, 333609), (183, 118495), (195, 111203), (305, 71097), (793, 27345), (915, 23699), (1823, 11895), (2379, 9115), (3965, 5469)]