18611944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9419}}^1$

素因数の和:9457

約数の個数: 32

約数和(自身を含む): 39564000

約数和(自身を除く): 20952056

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 9419, 18838, 37676, 75352, 122447, 178961, 244894, 357922, 489788, 715844, 979576, 1431688, 2326493, 4652986, 9305972, 18611944]

約数ペア:

[(1, 18611944), (2, 9305972), (4, 4652986), (8, 2326493), (13, 1431688), (19, 979576), (26, 715844), (38, 489788), (52, 357922), (76, 244894), (104, 178961), (152, 122447), (247, 75352), (494, 37676), (988, 18838), (1976, 9419)]