19782356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{499}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 40824000

約数和(自身を除く): 21041644

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 53, 68, 106, 187, 212, 374, 499, 583, 748, 901, 998, 1166, 1802, 1996, 2332, 3604, 5489, 8483, 9911, 10978, 16966, 19822, 21956, 26447, 33932, 39644, 52894, 93313, 105788, 186626, 290917, 373252, 449599, 581834, 899198, 1163668, 1798396, 4945589, 9891178, 19782356]

約数ペア:

[(1, 19782356), (2, 9891178), (4, 4945589), (11, 1798396), (17, 1163668), (22, 899198), (34, 581834), (44, 449599), (53, 373252), (68, 290917), (106, 186626), (187, 105788), (212, 93313), (374, 52894), (499, 39644), (583, 33932), (748, 26447), (901, 21956), (998, 19822), (1166, 16966), (1802, 10978), (1996, 9911), (2332, 8483), (3604, 5489)]