40905837

素因数分解:

$3^3\times 7^4\times {\mathrm{631}}^1$

素因数の和:668

約数の個数: 40

約数和(自身を含む): 70809280

約数和(自身を除く): 29903443

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 631, 1029, 1323, 1893, 2401, 3087, 4417, 5679, 7203, 9261, 13251, 17037, 21609, 30919, 39753, 64827, 92757, 119259, 216433, 278271, 649299, 834813, 1515031, 1947897, 4545093, 5843691, 13635279, 40905837]

約数ペア:

[(1, 40905837), (3, 13635279), (7, 5843691), (9, 4545093), (21, 1947897), (27, 1515031), (49, 834813), (63, 649299), (147, 278271), (189, 216433), (343, 119259), (441, 92757), (631, 64827), (1029, 39753), (1323, 30919), (1893, 21609), (2401, 17037), (3087, 13251), (4417, 9261), (5679, 7203)]