20175872871

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{283}}^1\times {\mathrm{28057}}^1$

素因数の和:28372

約数の個数: 48

約数和(自身を含む): 33913816832

約数和(自身を除く): 13737943961

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 283, 363, 847, 849, 1981, 2541, 3113, 5943, 9339, 21791, 28057, 34243, 65373, 84171, 102729, 196399, 239701, 308627, 589197, 719103, 925881, 2160389, 3394897, 6481167, 7940131, 10184691, 23764279, 23820393, 55580917, 71292837, 87341441, 166742751, 262024323, 611390087, 960755851, 1834170261, 2882267553, 6725290957, 20175872871]

約数ペア:

[(1, 20175872871), (3, 6725290957), (7, 2882267553), (11, 1834170261), (21, 960755851), (33, 611390087), (77, 262024323), (121, 166742751), (231, 87341441), (283, 71292837), (363, 55580917), (847, 23820393), (849, 23764279), (1981, 10184691), (2541, 7940131), (3113, 6481167), (5943, 3394897), (9339, 2160389), (21791, 925881), (28057, 719103), (34243, 589197), (65373, 308627), (84171, 239701), (102729, 196399)]