19882408

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{881}}^1$

素因数の和:938

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 27533912

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 182, 217, 248, 364, 403, 434, 728, 806, 868, 881, 1612, 1736, 1762, 2821, 3224, 3524, 5642, 6167, 7048, 11284, 11453, 12334, 22568, 22906, 24668, 27311, 45812, 49336, 54622, 80171, 91624, 109244, 160342, 191177, 218488, 320684, 355043, 382354, 641368, 710086, 764708, 1420172, 1529416, 2485301, 2840344, 4970602, 9941204, 19882408]

約数ペア:

[(1, 19882408), (2, 9941204), (4, 4970602), (7, 2840344), (8, 2485301), (13, 1529416), (14, 1420172), (26, 764708), (28, 710086), (31, 641368), (52, 382354), (56, 355043), (62, 320684), (91, 218488), (104, 191177), (124, 160342), (182, 109244), (217, 91624), (248, 80171), (364, 54622), (403, 49336), (434, 45812), (728, 27311), (806, 24668), (868, 22906), (881, 22568), (1612, 12334), (1736, 11453), (1762, 11284), (2821, 7048), (3224, 6167), (3524, 5642)]