42720993

素因数分解:

$3^3\times 7^4\times {\mathrm{659}}^1$

素因数の和:696

約数の個数: 40

約数和(自身を含む): 73946400

約数和(自身を除く): 31225407

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 659, 1029, 1323, 1977, 2401, 3087, 4613, 5931, 7203, 9261, 13839, 17793, 21609, 32291, 41517, 64827, 96873, 124551, 226037, 290619, 678111, 871857, 1582259, 2034333, 4746777, 6102999, 14240331, 42720993]

約数ペア:

[(1, 42720993), (3, 14240331), (7, 6102999), (9, 4746777), (21, 2034333), (27, 1582259), (49, 871857), (63, 678111), (147, 290619), (189, 226037), (343, 124551), (441, 96873), (659, 64827), (1029, 41517), (1323, 32291), (1977, 21609), (2401, 17793), (3087, 13839), (4613, 9261), (5931, 7203)]