18462556

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 38610432

約数和(自身を除く): 20147876

約数列:

[1, 2, 4, 7, 14, 28, 37, 71, 74, 142, 148, 251, 259, 284, 497, 502, 518, 994, 1004, 1036, 1757, 1988, 2627, 3514, 5254, 7028, 9287, 10508, 17821, 18389, 18574, 35642, 36778, 37148, 65009, 71284, 73556, 124747, 130018, 249494, 260036, 498988, 659377, 1318754, 2637508, 4615639, 9231278, 18462556]

約数ペア:

[(1, 18462556), (2, 9231278), (4, 4615639), (7, 2637508), (14, 1318754), (28, 659377), (37, 498988), (71, 260036), (74, 249494), (142, 130018), (148, 124747), (251, 73556), (259, 71284), (284, 65009), (497, 37148), (502, 36778), (518, 35642), (994, 18574), (1004, 18389), (1036, 17821), (1757, 10508), (1988, 9287), (2627, 7028), (3514, 5254)]