1389885

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:114

約数の個数: 48

約数和(自身を含む): 2714112

約数和(自身を除く): 1324227

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 49, 61, 93, 105, 147, 155, 183, 217, 245, 305, 427, 465, 651, 735, 915, 1085, 1281, 1519, 1891, 2135, 2989, 3255, 4557, 5673, 6405, 7595, 8967, 9455, 13237, 14945, 22785, 28365, 39711, 44835, 66185, 92659, 198555, 277977, 463295, 1389885]

約数ペア:

[(1, 1389885), (3, 463295), (5, 277977), (7, 198555), (15, 92659), (21, 66185), (31, 44835), (35, 39711), (49, 28365), (61, 22785), (93, 14945), (105, 13237), (147, 9455), (155, 8967), (183, 7595), (217, 6405), (245, 5673), (305, 4557), (427, 3255), (465, 2989), (651, 2135), (735, 1891), (915, 1519), (1085, 1281)]