19975438

素因数分解:

$2^1\times 7^2\times {\mathrm{317}}^1\times {\mathrm{643}}^1$

素因数の和:976

約数の個数: 24

約数和(自身を含む): 35019432

約数和(自身を除く): 15043994

約数列:

[1, 2, 7, 14, 49, 98, 317, 634, 643, 1286, 2219, 4438, 4501, 9002, 15533, 31066, 31507, 63014, 203831, 407662, 1426817, 2853634, 9987719, 19975438]

約数ペア:

[(1, 19975438), (2, 9987719), (7, 2853634), (14, 1426817), (49, 407662), (98, 203831), (317, 63014), (634, 31507), (643, 31066), (1286, 15533), (2219, 9002), (4438, 4501)]