20749442

素因数分解:

$2^1\times 7^4\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:208

約数の個数: 40

約数和(自身を含む): 37813500

約数和(自身を除く): 17064058

約数列:

[1, 2, 7, 14, 29, 49, 58, 98, 149, 203, 298, 343, 406, 686, 1043, 1421, 2086, 2401, 2842, 4321, 4802, 7301, 8642, 9947, 14602, 19894, 30247, 51107, 60494, 69629, 102214, 139258, 211729, 357749, 423458, 715498, 1482103, 2964206, 10374721, 20749442]

約数ペア:

[(1, 20749442), (2, 10374721), (7, 2964206), (14, 1482103), (29, 715498), (49, 423458), (58, 357749), (98, 211729), (149, 139258), (203, 102214), (298, 69629), (343, 60494), (406, 51107), (686, 30247), (1043, 19894), (1421, 14602), (2086, 9947), (2401, 8642), (2842, 7301), (4321, 4802)]