18640552

素因数分解:

$2^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2621}}^1$

素因数の和:2761

約数の個数: 32

約数和(自身を含む): 40273920

約数和(自身を除く): 21633368

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 127, 254, 508, 889, 1016, 1778, 2621, 3556, 5242, 7112, 10484, 18347, 20968, 36694, 73388, 146776, 332867, 665734, 1331468, 2330069, 2662936, 4660138, 9320276, 18640552]

約数ペア:

[(1, 18640552), (2, 9320276), (4, 4660138), (7, 2662936), (8, 2330069), (14, 1331468), (28, 665734), (56, 332867), (127, 146776), (254, 73388), (508, 36694), (889, 20968), (1016, 18347), (1778, 10484), (2621, 7112), (3556, 5242)]