21787046648

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{389}}^1\times {\mathrm{148957}}^1$

素因数の和:149399

約数の個数: 32

約数和(自身を含む): 41827406400

約数和(自身を除く): 20040359752

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 389, 778, 1556, 3112, 18283, 36566, 73132, 146264, 148957, 297914, 595828, 1191656, 7000979, 14001958, 28003916, 56007832, 57944273, 115888546, 231777092, 463554184, 2723380831, 5446761662, 10893523324, 21787046648]

約数ペア:

[(1, 21787046648), (2, 10893523324), (4, 5446761662), (8, 2723380831), (47, 463554184), (94, 231777092), (188, 115888546), (376, 57944273), (389, 56007832), (778, 28003916), (1556, 14001958), (3112, 7000979), (18283, 1191656), (36566, 595828), (73132, 297914), (146264, 148957)]