19052817

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 31606272

約数和(自身を除く): 12553455

約数列:

[1, 3, 7, 21, 31, 37, 49, 93, 111, 113, 147, 217, 259, 339, 651, 777, 791, 1147, 1519, 1813, 2373, 3441, 3503, 4181, 4557, 5439, 5537, 8029, 10509, 12543, 16611, 24087, 24521, 29267, 56203, 73563, 87801, 129611, 168609, 171647, 204869, 388833, 514941, 614607, 907277, 2721831, 6350939, 19052817]

約数ペア:

[(1, 19052817), (3, 6350939), (7, 2721831), (21, 907277), (31, 614607), (37, 514941), (49, 388833), (93, 204869), (111, 171647), (113, 168609), (147, 129611), (217, 87801), (259, 73563), (339, 56203), (651, 29267), (777, 24521), (791, 24087), (1147, 16611), (1519, 12543), (1813, 10509), (2373, 8029), (3441, 5537), (3503, 5439), (4181, 4557)]