20724816

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{61681}}^1$

素因数の和:61699

約数の個数: 40

約数和(自身を含む): 61188544

約数和(自身を除く): 40463728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 61681, 123362, 185043, 246724, 370086, 431767, 493448, 740172, 863534, 986896, 1295301, 1480344, 1727068, 2590602, 2960688, 3454136, 5181204, 6908272, 10362408, 20724816]

約数ペア:

[(1, 20724816), (2, 10362408), (3, 6908272), (4, 5181204), (6, 3454136), (7, 2960688), (8, 2590602), (12, 1727068), (14, 1480344), (16, 1295301), (21, 986896), (24, 863534), (28, 740172), (42, 493448), (48, 431767), (56, 370086), (84, 246724), (112, 185043), (168, 123362), (336, 61681)]