18993104

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{719}}^1$

素因数の和:867

約数の個数: 40

約数和(自身を含む): 39997440

約数和(自身を除く): 21004336

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 127, 208, 254, 508, 719, 1016, 1438, 1651, 2032, 2876, 3302, 5752, 6604, 9347, 11504, 13208, 18694, 26416, 37388, 74776, 91313, 149552, 182626, 365252, 730504, 1187069, 1461008, 2374138, 4748276, 9496552, 18993104]

約数ペア:

[(1, 18993104), (2, 9496552), (4, 4748276), (8, 2374138), (13, 1461008), (16, 1187069), (26, 730504), (52, 365252), (104, 182626), (127, 149552), (208, 91313), (254, 74776), (508, 37388), (719, 26416), (1016, 18694), (1438, 13208), (1651, 11504), (2032, 9347), (2876, 6604), (3302, 5752)]