19983896

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1801}}^1$

素因数の和:1899

約数の個数: 32

約数和(自身を含む): 40004400

約数和(自身を除く): 20020504

約数列:

[1, 2, 4, 8, 19, 38, 73, 76, 146, 152, 292, 584, 1387, 1801, 2774, 3602, 5548, 7204, 11096, 14408, 34219, 68438, 131473, 136876, 262946, 273752, 525892, 1051784, 2497987, 4995974, 9991948, 19983896]

約数ペア:

[(1, 19983896), (2, 9991948), (4, 4995974), (8, 2497987), (19, 1051784), (38, 525892), (73, 273752), (76, 262946), (146, 136876), (152, 131473), (292, 68438), (584, 34219), (1387, 14408), (1801, 11096), (2774, 7204), (3602, 5548)]