17798745

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{313}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 30385152

約数和(自身を除く): 12586407

約数列:

[1, 3, 5, 15, 17, 51, 85, 223, 255, 313, 669, 939, 1115, 1565, 3345, 3791, 4695, 5321, 11373, 15963, 18955, 26605, 56865, 69799, 79815, 209397, 348995, 1046985, 1186583, 3559749, 5932915, 17798745]

約数ペア:

[(1, 17798745), (3, 5932915), (5, 3559749), (15, 1186583), (17, 1046985), (51, 348995), (85, 209397), (223, 79815), (255, 69799), (313, 56865), (669, 26605), (939, 18955), (1115, 15963), (1565, 11373), (3345, 5321), (3791, 4695)]