19456684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 39513600

約数和(自身を除く): 20056916

約数列:

[1, 2, 4, 13, 19, 26, 38, 47, 52, 76, 94, 188, 247, 419, 494, 611, 838, 893, 988, 1222, 1676, 1786, 2444, 3572, 5447, 7961, 10894, 11609, 15922, 19693, 21788, 23218, 31844, 39386, 46436, 78772, 103493, 206986, 256009, 374167, 413972, 512018, 748334, 1024036, 1496668, 4864171, 9728342, 19456684]

約数ペア:

[(1, 19456684), (2, 9728342), (4, 4864171), (13, 1496668), (19, 1024036), (26, 748334), (38, 512018), (47, 413972), (52, 374167), (76, 256009), (94, 206986), (188, 103493), (247, 78772), (419, 46436), (494, 39386), (611, 31844), (838, 23218), (893, 21788), (988, 19693), (1222, 15922), (1676, 11609), (1786, 10894), (2444, 7961), (3572, 5447)]