18754672

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{191}}^1$

素因数の和:254

約数の個数: 60

約数和(自身を含む): 40818816

約数和(自身を除く): 22064144

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 191, 272, 304, 323, 361, 382, 646, 722, 764, 1292, 1444, 1528, 2584, 2888, 3056, 3247, 3629, 5168, 5776, 6137, 6494, 7258, 12274, 12988, 14516, 24548, 25976, 29032, 49096, 51952, 58064, 61693, 68951, 98192, 123386, 137902, 246772, 275804, 493544, 551608, 987088, 1103216, 1172167, 2344334, 4688668, 9377336, 18754672]

約数ペア:

[(1, 18754672), (2, 9377336), (4, 4688668), (8, 2344334), (16, 1172167), (17, 1103216), (19, 987088), (34, 551608), (38, 493544), (68, 275804), (76, 246772), (136, 137902), (152, 123386), (191, 98192), (272, 68951), (304, 61693), (323, 58064), (361, 51952), (382, 49096), (646, 29032), (722, 25976), (764, 24548), (1292, 14516), (1444, 12988), (1528, 12274), (2584, 7258), (2888, 6494), (3056, 6137), (3247, 5776), (3629, 5168)]