19345228

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 21103796

約数列:

[1, 2, 4, 7, 14, 28, 37, 71, 74, 142, 148, 259, 263, 284, 497, 518, 526, 994, 1036, 1052, 1841, 1988, 2627, 3682, 5254, 7364, 9731, 10508, 18389, 18673, 19462, 36778, 37346, 38924, 68117, 73556, 74692, 130711, 136234, 261422, 272468, 522844, 690901, 1381802, 2763604, 4836307, 9672614, 19345228]

約数ペア:

[(1, 19345228), (2, 9672614), (4, 4836307), (7, 2763604), (14, 1381802), (28, 690901), (37, 522844), (71, 272468), (74, 261422), (142, 136234), (148, 130711), (259, 74692), (263, 73556), (284, 68117), (497, 38924), (518, 37346), (526, 36778), (994, 19462), (1036, 18673), (1052, 18389), (1841, 10508), (1988, 9731), (2627, 7364), (3682, 5254)]