21738185

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{337}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 31799040

約数和(自身を除く): 10060855

約数列:

[1, 5, 7, 19, 35, 95, 97, 133, 337, 485, 665, 679, 1685, 1843, 2359, 3395, 6403, 9215, 11795, 12901, 32015, 32689, 44821, 64505, 163445, 224105, 228823, 621091, 1144115, 3105455, 4347637, 21738185]

約数ペア:

[(1, 21738185), (5, 4347637), (7, 3105455), (19, 1144115), (35, 621091), (95, 228823), (97, 224105), (133, 163445), (337, 64505), (485, 44821), (665, 32689), (679, 32015), (1685, 12901), (1843, 11795), (2359, 9215), (3395, 6403)]