19394778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 43428096

約数和(自身を除く): 24033318

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 169, 186, 338, 403, 507, 617, 806, 1014, 1209, 1234, 1851, 2418, 3702, 5239, 8021, 10478, 15717, 16042, 19127, 24063, 31434, 38254, 48126, 57381, 104273, 114762, 208546, 248651, 312819, 497302, 625638, 745953, 1491906, 3232463, 6464926, 9697389, 19394778]

約数ペア:

[(1, 19394778), (2, 9697389), (3, 6464926), (6, 3232463), (13, 1491906), (26, 745953), (31, 625638), (39, 497302), (62, 312819), (78, 248651), (93, 208546), (169, 114762), (186, 104273), (338, 57381), (403, 48126), (507, 38254), (617, 31434), (806, 24063), (1014, 19127), (1209, 16042), (1234, 15717), (1851, 10478), (2418, 8021), (3702, 5239)]