209210919

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{367}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 300641280

約数和(自身を除く): 91430361

約数列:

[1, 3, 19, 57, 73, 137, 219, 367, 411, 1101, 1387, 2603, 4161, 6973, 7809, 10001, 20919, 26791, 30003, 50279, 80373, 150837, 190019, 509029, 570057, 955301, 1527087, 2865903, 3670367, 11011101, 69736973, 209210919]

約数ペア:

[(1, 209210919), (3, 69736973), (19, 11011101), (57, 3670367), (73, 2865903), (137, 1527087), (219, 955301), (367, 570057), (411, 509029), (1101, 190019), (1387, 150837), (2603, 80373), (4161, 50279), (6973, 30003), (7809, 26791), (10001, 20919)]