19626999

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 32394240

約数和(自身を除く): 12767241

約数列:

[1, 3, 7, 21, 31, 49, 59, 73, 93, 147, 177, 217, 219, 413, 511, 651, 1239, 1519, 1533, 1829, 2263, 2891, 3577, 4307, 4557, 5487, 6789, 8673, 10731, 12803, 12921, 15841, 30149, 38409, 47523, 89621, 90447, 110887, 133517, 211043, 268863, 332661, 400551, 633129, 934619, 2803857, 6542333, 19626999]

約数ペア:

[(1, 19626999), (3, 6542333), (7, 2803857), (21, 934619), (31, 633129), (49, 400551), (59, 332661), (73, 268863), (93, 211043), (147, 133517), (177, 110887), (217, 90447), (219, 89621), (413, 47523), (511, 38409), (651, 30149), (1239, 15841), (1519, 12921), (1533, 12803), (1829, 10731), (2263, 8673), (2891, 6789), (3577, 5487), (4307, 4557)]