20113912

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3947}}^1$

素因数の和:3980

約数の個数: 48

約数和(自身を含む): 47257560

約数和(自身を除く): 27143648

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 3947, 5096, 7894, 15788, 27629, 31576, 51311, 55258, 102622, 110516, 193403, 205244, 221032, 359177, 386806, 410488, 718354, 773612, 1436708, 1547224, 2514239, 2873416, 5028478, 10056956, 20113912]

約数ペア:

[(1, 20113912), (2, 10056956), (4, 5028478), (7, 2873416), (8, 2514239), (13, 1547224), (14, 1436708), (26, 773612), (28, 718354), (49, 410488), (52, 386806), (56, 359177), (91, 221032), (98, 205244), (104, 193403), (182, 110516), (196, 102622), (364, 55258), (392, 51311), (637, 31576), (728, 27629), (1274, 15788), (2548, 7894), (3947, 5096)]