18843195

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{827}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 36246528

約数和(自身を除く): 17403333

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 49, 93, 105, 147, 155, 217, 245, 465, 651, 735, 827, 1085, 1519, 2481, 3255, 4135, 4557, 5789, 7595, 12405, 17367, 22785, 25637, 28945, 40523, 76911, 86835, 121569, 128185, 179459, 202615, 384555, 538377, 607845, 897295, 1256213, 2691885, 3768639, 6281065, 18843195]

約数ペア:

[(1, 18843195), (3, 6281065), (5, 3768639), (7, 2691885), (15, 1256213), (21, 897295), (31, 607845), (35, 538377), (49, 384555), (93, 202615), (105, 179459), (147, 128185), (155, 121569), (217, 86835), (245, 76911), (465, 40523), (651, 28945), (735, 25637), (827, 22785), (1085, 17367), (1519, 12405), (2481, 7595), (3255, 5789), (4135, 4557)]