20478542

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{461}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 16777138

約数列:

[1, 2, 7, 14, 19, 38, 133, 167, 266, 334, 461, 922, 1169, 2338, 3173, 3227, 6346, 6454, 8759, 17518, 22211, 44422, 61313, 76987, 122626, 153974, 538909, 1077818, 1462753, 2925506, 10239271, 20478542]

約数ペア:

[(1, 20478542), (2, 10239271), (7, 2925506), (14, 1462753), (19, 1077818), (38, 538909), (133, 153974), (167, 122626), (266, 76987), (334, 61313), (461, 44422), (922, 22211), (1169, 17518), (2338, 8759), (3173, 6454), (3227, 6346)]